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The following commit(s) were added to refs/heads/master by this push:
     new a1a547ddac3 Rename resource to storage unit (#23125)
a1a547ddac3 is described below

commit a1a547ddac3f8b749295e807de594928a1f574f0
Author: Chen Jiahao <[email protected]>
AuthorDate: Wed Dec 28 13:53:30 2022 +0800

    Rename resource to storage unit (#23125)
---
 .../DuplicateStorageUnitException.java}                    | 10 +++++-----
 .../EmptyStorageUnitException.java}                        |  8 ++++----
 .../InvalidStorageUnitsException.java}                     |  8 ++++----
 .../MissingRequiredStorageUnitsException.java}             | 10 +++++-----
 .../StorageUnitDefinitionViolationException.java}          |  8 ++++----
 .../StorageUnitInUsedException.java}                       | 10 +++++-----
 .../validate/DataSourcePropertiesValidateHandler.java      |  4 ++--
 .../update/AlterDatabaseDiscoveryRuleStatementUpdater.java |  4 ++--
 .../CreateDatabaseDiscoveryRuleStatementUpdater.java       |  4 ++--
 .../AlterDatabaseDiscoveryRuleStatementUpdaterTest.java    |  4 ++--
 .../CreateDatabaseDiscoveryRuleStatementUpdaterTest.java   |  4 ++--
 .../handler/update/CreateEncryptRuleStatementUpdater.java  |  4 ++--
 .../checker/ReadwriteSplittingRuleStatementChecker.java    |  6 +++---
 .../AlterReadwriteSplittingRuleStatementUpdaterTest.java   |  6 +++---
 .../CreateReadwriteSplittingRuleStatementUpdaterTest.java  |  6 +++---
 .../handler/checker/ShadowRuleStatementChecker.java        |  4 ++--
 .../update/AlterShadowRuleStatementUpdaterTest.java        |  4 ++--
 .../update/CreateShadowRuleStatementUpdaterTest.java       |  4 ++--
 .../handler/checker/ShardingTableRuleStatementChecker.java |  4 ++--
 .../distsql/checker/ShardingRuleStatementCheckerTest.java  |  4 ++--
 .../infra/instance/mode/ModeContextManager.java            |  1 -
 .../infra/context/refresher/MetaDataRefresher.java         |  2 +-
 .../type/table/AlterTableStatementSchemaRefresher.java     |  4 ++--
 .../type/table/RenameTableStatementSchemaRefresher.java    |  4 ++--
 .../DatabaseDiscoveryRuleConfigurationImportChecker.java   |  4 ++--
 .../ReadwriteSplittingRuleConfigurationImportChecker.java  |  6 +++---
 .../checker/ShardingRuleConfigurationImportChecker.java    |  4 ++--
 ...eadwriteSplittingStorageUnitStatusStatementHandler.java |  4 ++--
 .../ral/updatable/ImportDatabaseConfigurationHandler.java  |  4 ++--
 .../distsql/ral/updatable/RefreshTableMetaDataHandler.java |  8 ++++----
 .../rdl/resource/AlterStorageUnitBackendHandler.java       | 14 +++++++-------
 .../rdl/resource/RegisterStorageUnitBackendHandler.java    | 10 +++++-----
 .../rdl/resource/UnregisterStorageUnitBackendHandler.java  | 14 +++++++-------
 .../SetDefaultSingleTableStorageUnitStatementUpdater.java  |  4 ++--
 .../ral/updatable/RefreshTableMetaDataHandlerTest.java     |  8 ++++----
 .../rdl/resource/AlterStorageUnitBackendHandlerTest.java   | 12 ++++++------
 .../resource/RegisterStorageUnitBackendHandlerTest.java    | 10 +++++-----
 .../resource/UnregisterStorageUnitBackendHandlerTest.java  | 10 +++++-----
 .../rule/SetDefaultSingleTableStorageUnitUpdaterTest.java  |  4 ++--
 39 files changed, 121 insertions(+), 122 deletions(-)

diff --git 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/DuplicateResourceException.java
 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/DuplicateStorageUnitException.java
similarity index 76%
rename from 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/DuplicateResourceException.java
rename to 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/DuplicateStorageUnitException.java
index 6f22ec27907..2a2766f7102 100644
--- 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/DuplicateResourceException.java
+++ 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/DuplicateStorageUnitException.java
@@ -15,20 +15,20 @@
  * limitations under the License.
  */
 
-package org.apache.shardingsphere.distsql.handler.exception.resource;
+package org.apache.shardingsphere.distsql.handler.exception.storageunit;
 
 import 
org.apache.shardingsphere.infra.util.exception.external.sql.sqlstate.XOpenSQLState;
 
 import java.util.Collection;
 
 /**
- * Duplicate resource exception.
+ * Duplicate storage unit exception.
  */
-public final class DuplicateResourceException extends 
ResourceDefinitionViolationException {
+public final class DuplicateStorageUnitException extends 
StorageUnitDefinitionViolationException {
     
     private static final long serialVersionUID = 2103793827572264148L;
     
-    public DuplicateResourceException(final Collection<String> resourceNames) {
-        super(XOpenSQLState.CHECK_OPTION_VIOLATION, 4, "Duplicate storage unit 
names `%s`.", resourceNames);
+    public DuplicateStorageUnitException(final Collection<String> 
storageUnitNames) {
+        super(XOpenSQLState.CHECK_OPTION_VIOLATION, 4, "Duplicate storage unit 
names `%s`.", storageUnitNames);
     }
 }
diff --git 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/EmptyResourceException.java
 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/EmptyStorageUnitException.java
similarity index 80%
rename from 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/EmptyResourceException.java
rename to 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/EmptyStorageUnitException.java
index c13695fe0ca..f63607fe890 100644
--- 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/EmptyResourceException.java
+++ 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/EmptyStorageUnitException.java
@@ -15,18 +15,18 @@
  * limitations under the License.
  */
 
-package org.apache.shardingsphere.distsql.handler.exception.resource;
+package org.apache.shardingsphere.distsql.handler.exception.storageunit;
 
 import 
org.apache.shardingsphere.infra.util.exception.external.sql.sqlstate.XOpenSQLState;
 
 /**
- * Empty resource exception.
+ * Empty storage unit exception.
  */
-public final class EmptyResourceException extends 
ResourceDefinitionViolationException {
+public final class EmptyStorageUnitException extends 
StorageUnitDefinitionViolationException {
     
     private static final long serialVersionUID = 1704331180489268L;
     
-    public EmptyResourceException(final String databaseName) {
+    public EmptyStorageUnitException(final String databaseName) {
         super(XOpenSQLState.CHECK_OPTION_VIOLATION, 2, "There is no storage 
unit in the database `%s`.", databaseName);
     }
 }
diff --git 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/InvalidResourcesException.java
 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/InvalidStorageUnitsException.java
similarity index 80%
rename from 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/InvalidResourcesException.java
rename to 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/InvalidStorageUnitsException.java
index 45332a9935f..6f3edb90098 100644
--- 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/InvalidResourcesException.java
+++ 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/InvalidStorageUnitsException.java
@@ -15,20 +15,20 @@
  * limitations under the License.
  */
 
-package org.apache.shardingsphere.distsql.handler.exception.resource;
+package org.apache.shardingsphere.distsql.handler.exception.storageunit;
 
 import 
org.apache.shardingsphere.infra.util.exception.external.sql.sqlstate.XOpenSQLState;
 
 import java.util.Collection;
 
 /**
- * Invalid resources exception.
+ * Invalid storage units exception.
  */
-public final class InvalidResourcesException extends 
ResourceDefinitionViolationException {
+public final class InvalidStorageUnitsException extends 
StorageUnitDefinitionViolationException {
     
     private static final long serialVersionUID = 7029641448948791509L;
     
-    public InvalidResourcesException(final Collection<String> errorMessages) {
+    public InvalidStorageUnitsException(final Collection<String> 
errorMessages) {
         super(XOpenSQLState.CHECK_OPTION_VIOLATION, 0, "Can not process 
invalid storage units, error message is: %s", errorMessages);
     }
 }
diff --git 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/MissingRequiredResourcesException.java
 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/MissingRequiredStorageUnitsException.java
similarity index 72%
rename from 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/MissingRequiredResourcesException.java
rename to 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/MissingRequiredStorageUnitsException.java
index 1eee11a37f1..a0e1cbe55de 100644
--- 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/MissingRequiredResourcesException.java
+++ 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/MissingRequiredStorageUnitsException.java
@@ -15,20 +15,20 @@
  * limitations under the License.
  */
 
-package org.apache.shardingsphere.distsql.handler.exception.resource;
+package org.apache.shardingsphere.distsql.handler.exception.storageunit;
 
 import 
org.apache.shardingsphere.infra.util.exception.external.sql.sqlstate.XOpenSQLState;
 
 import java.util.Collection;
 
 /**
- * Missing required resources exception.
+ * Missing required storage units exception.
  */
-public final class MissingRequiredResourcesException extends 
ResourceDefinitionViolationException {
+public final class MissingRequiredStorageUnitsException extends 
StorageUnitDefinitionViolationException {
     
     private static final long serialVersionUID = 1704331180489268L;
     
-    public MissingRequiredResourcesException(final String databaseName, final 
Collection<String> resourceNames) {
-        super(XOpenSQLState.CHECK_OPTION_VIOLATION, 1, "Storage units `%s` do 
not exist in database `%s`.", resourceNames, databaseName);
+    public MissingRequiredStorageUnitsException(final String databaseName, 
final Collection<String> storageUnitNames) {
+        super(XOpenSQLState.CHECK_OPTION_VIOLATION, 1, "Storage units `%s` do 
not exist in database `%s`.", storageUnitNames, databaseName);
     }
 }
diff --git 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/ResourceDefinitionViolationException.java
 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/StorageUnitDefinitionViolationException.java
similarity index 75%
rename from 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/ResourceDefinitionViolationException.java
rename to 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/StorageUnitDefinitionViolationException.java
index d008efe2361..c273cd3f122 100644
--- 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/ResourceDefinitionViolationException.java
+++ 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/StorageUnitDefinitionViolationException.java
@@ -15,19 +15,19 @@
  * limitations under the License.
  */
 
-package org.apache.shardingsphere.distsql.handler.exception.resource;
+package org.apache.shardingsphere.distsql.handler.exception.storageunit;
 
 import org.apache.shardingsphere.distsql.handler.exception.DistSQLException;
 import 
org.apache.shardingsphere.infra.util.exception.external.sql.sqlstate.SQLState;
 
 /**
- * Resource definition violation exception.
+ * Storage unit definition violation exception.
  */
-public abstract class ResourceDefinitionViolationException extends 
DistSQLException {
+public abstract class StorageUnitDefinitionViolationException extends 
DistSQLException {
     
     private static final long serialVersionUID = -2686784350802985974L;
     
-    public ResourceDefinitionViolationException(final SQLState sqlState, final 
int errorCode, final String reason, final Object... messageArgs) {
+    public StorageUnitDefinitionViolationException(final SQLState sqlState, 
final int errorCode, final String reason, final Object... messageArgs) {
         super(sqlState, errorCode, reason, messageArgs);
     }
 }
diff --git 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/ResourceInUsedException.java
 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/StorageUnitInUsedException.java
similarity index 70%
rename from 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/ResourceInUsedException.java
rename to 
distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/StorageUnitInUsedException.java
index f9d75d08529..17b39ea8e03 100644
--- 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/resource/ResourceInUsedException.java
+++ 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/exception/storageunit/StorageUnitInUsedException.java
@@ -15,20 +15,20 @@
  * limitations under the License.
  */
 
-package org.apache.shardingsphere.distsql.handler.exception.resource;
+package org.apache.shardingsphere.distsql.handler.exception.storageunit;
 
 import 
org.apache.shardingsphere.infra.util.exception.external.sql.sqlstate.XOpenSQLState;
 
 import java.util.Collection;
 
 /**
- * Resource in used exception.
+ * Storage unit in used exception.
  */
-public final class ResourceInUsedException extends 
ResourceDefinitionViolationException {
+public final class StorageUnitInUsedException extends 
StorageUnitDefinitionViolationException {
     
     private static final long serialVersionUID = -3427324685070457375L;
     
-    public ResourceInUsedException(final String resourceName, final 
Collection<String> ruleTypes) {
-        super(XOpenSQLState.CHECK_OPTION_VIOLATION, 3, "Resource `%s` is still 
used by `%s`.", resourceName, ruleTypes);
+    public StorageUnitInUsedException(final String storageUnitName, final 
Collection<String> ruleTypes) {
+        super(XOpenSQLState.CHECK_OPTION_VIOLATION, 3, "Storage unit `%s` is 
still used by `%s`.", storageUnitName, ruleTypes);
     }
 }
diff --git 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/validate/DataSourcePropertiesValidateHandler.java
 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/validate/DataSourcePropertiesValidateHandler.java
index e9a678bc12d..1e6101c2783 100644
--- 
a/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/validate/DataSourcePropertiesValidateHandler.java
+++ 
b/distsql/handler/src/main/java/org/apache/shardingsphere/distsql/handler/validate/DataSourcePropertiesValidateHandler.java
@@ -17,7 +17,7 @@
 
 package org.apache.shardingsphere.distsql.handler.validate;
 
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.InvalidResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.InvalidStorageUnitsException;
 import org.apache.shardingsphere.infra.datasource.props.DataSourceProperties;
 import 
org.apache.shardingsphere.infra.datasource.props.DataSourcePropertiesValidator;
 
@@ -37,7 +37,7 @@ public final class DataSourcePropertiesValidateHandler {
     public void validate(final Map<String, DataSourceProperties> 
dataSourcePropertiesMap) {
         Collection<String> errorMessages = new 
DataSourcePropertiesValidator().validate(dataSourcePropertiesMap);
         if (!errorMessages.isEmpty()) {
-            throw new InvalidResourcesException(errorMessages);
+            throw new InvalidStorageUnitsException(errorMessages);
         }
     }
 }
diff --git 
a/features/db-discovery/distsql/handler/src/main/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/AlterDatabaseDiscoveryRuleStatementUpdater.java
 
b/features/db-discovery/distsql/handler/src/main/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/AlterDatabaseDiscoveryRuleStatementUpdater.java
index 3289cb03687..1cb497ae2b3 100644
--- 
a/features/db-discovery/distsql/handler/src/main/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/AlterDatabaseDiscoveryRuleStatementUpdater.java
+++ 
b/features/db-discovery/distsql/handler/src/main/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/AlterDatabaseDiscoveryRuleStatementUpdater.java
@@ -26,7 +26,7 @@ import 
org.apache.shardingsphere.dbdiscovery.distsql.parser.segment.DatabaseDisc
 import 
org.apache.shardingsphere.dbdiscovery.distsql.parser.statement.AlterDatabaseDiscoveryRuleStatement;
 import 
org.apache.shardingsphere.dbdiscovery.factory.DatabaseDiscoveryProviderAlgorithmFactory;
 import org.apache.shardingsphere.infra.config.rule.RuleConfiguration;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.MissingRequiredAlgorithmException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.MissingRequiredRuleException;
@@ -75,7 +75,7 @@ public final class AlterDatabaseDiscoveryRuleStatementUpdater 
implements RuleDef
     
     private void checkToBeAlteredResources(final String databaseName, final 
AlterDatabaseDiscoveryRuleStatement sqlStatement, final 
ShardingSphereResourceMetaData resourceMetaData) {
         Collection<String> notExistedResources = 
resourceMetaData.getNotExistedResources(getToBeAlteredResourceNames(sqlStatement));
-        ShardingSpherePreconditions.checkState(notExistedResources.isEmpty(), 
() -> new MissingRequiredResourcesException(databaseName, notExistedResources));
+        ShardingSpherePreconditions.checkState(notExistedResources.isEmpty(), 
() -> new MissingRequiredStorageUnitsException(databaseName, 
notExistedResources));
     }
     
     private Collection<String> getToBeAlteredResourceNames(final 
AlterDatabaseDiscoveryRuleStatement sqlStatement) {
diff --git 
a/features/db-discovery/distsql/handler/src/main/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/CreateDatabaseDiscoveryRuleStatementUpdater.java
 
b/features/db-discovery/distsql/handler/src/main/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/CreateDatabaseDiscoveryRuleStatementUpdater.java
index 3473c944deb..dcc0bcb169c 100644
--- 
a/features/db-discovery/distsql/handler/src/main/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/CreateDatabaseDiscoveryRuleStatementUpdater.java
+++ 
b/features/db-discovery/distsql/handler/src/main/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/CreateDatabaseDiscoveryRuleStatementUpdater.java
@@ -24,7 +24,7 @@ import 
org.apache.shardingsphere.dbdiscovery.distsql.parser.segment.AbstractData
 import 
org.apache.shardingsphere.dbdiscovery.distsql.parser.segment.DatabaseDiscoveryDefinitionSegment;
 import 
org.apache.shardingsphere.dbdiscovery.distsql.parser.statement.CreateDatabaseDiscoveryRuleStatement;
 import 
org.apache.shardingsphere.dbdiscovery.factory.DatabaseDiscoveryProviderAlgorithmFactory;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.DuplicateRuleException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.MissingRequiredAlgorithmException;
@@ -75,7 +75,7 @@ public final class 
CreateDatabaseDiscoveryRuleStatementUpdater implements RuleDe
         Collection<String> resources = new LinkedHashSet<>();
         sqlStatement.getRules().forEach(each -> 
resources.addAll(each.getDataSources()));
         Collection<String> notExistResources = 
resourceMetaData.getNotExistedResources(resources);
-        ShardingSpherePreconditions.checkState(notExistResources.isEmpty(), () 
-> new MissingRequiredResourcesException(databaseName, notExistResources));
+        ShardingSpherePreconditions.checkState(notExistResources.isEmpty(), () 
-> new MissingRequiredStorageUnitsException(databaseName, notExistResources));
     }
     
     private void checkDiscoverTypeAndHeartbeat(final String databaseName, 
final CreateDatabaseDiscoveryRuleStatement sqlStatement, final 
DatabaseDiscoveryRuleConfiguration currentRuleConfig) {
diff --git 
a/features/db-discovery/distsql/handler/src/test/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/AlterDatabaseDiscoveryRuleStatementUpdaterTest.java
 
b/features/db-discovery/distsql/handler/src/test/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/AlterDatabaseDiscoveryRuleStatementUpdaterTest.java
index d029ab88881..c6ff5cd9807 100644
--- 
a/features/db-discovery/distsql/handler/src/test/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/AlterDatabaseDiscoveryRuleStatementUpdaterTest.java
+++ 
b/features/db-discovery/distsql/handler/src/test/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/AlterDatabaseDiscoveryRuleStatementUpdaterTest.java
@@ -22,7 +22,7 @@ import 
org.apache.shardingsphere.dbdiscovery.api.config.rule.DatabaseDiscoveryDa
 import 
org.apache.shardingsphere.dbdiscovery.distsql.parser.segment.DatabaseDiscoveryDefinitionSegment;
 import 
org.apache.shardingsphere.dbdiscovery.distsql.parser.statement.AlterDatabaseDiscoveryRuleStatement;
 import org.apache.shardingsphere.distsql.parser.segment.AlgorithmSegment;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.MissingRequiredRuleException;
 import 
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
@@ -77,7 +77,7 @@ public final class 
AlterDatabaseDiscoveryRuleStatementUpdaterTest {
                 new 
DatabaseDiscoveryRuleConfiguration(Collections.emptyList(), 
Collections.emptyMap(), Collections.emptyMap()));
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertCheckSQLStatementWithoutExistedResources() {
         
when(resourceMetaData.getNotExistedResources(any())).thenReturn(Collections.singleton("ds0"));
         Properties props = new Properties();
diff --git 
a/features/db-discovery/distsql/handler/src/test/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/CreateDatabaseDiscoveryRuleStatementUpdaterTest.java
 
b/features/db-discovery/distsql/handler/src/test/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/CreateDatabaseDiscoveryRuleStatementUpdaterTest.java
index 6cc08955866..aaaaa6c2c2e 100644
--- 
a/features/db-discovery/distsql/handler/src/test/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/CreateDatabaseDiscoveryRuleStatementUpdaterTest.java
+++ 
b/features/db-discovery/distsql/handler/src/test/java/org/apache/shardingsphere/dbdiscovery/distsql/handler/update/CreateDatabaseDiscoveryRuleStatementUpdaterTest.java
@@ -22,7 +22,7 @@ import 
org.apache.shardingsphere.dbdiscovery.api.config.rule.DatabaseDiscoveryDa
 import 
org.apache.shardingsphere.dbdiscovery.distsql.parser.segment.DatabaseDiscoveryDefinitionSegment;
 import 
org.apache.shardingsphere.dbdiscovery.distsql.parser.statement.CreateDatabaseDiscoveryRuleStatement;
 import org.apache.shardingsphere.distsql.parser.segment.AlgorithmSegment;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.DuplicateRuleException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
@@ -73,7 +73,7 @@ public final class 
CreateDatabaseDiscoveryRuleStatementUpdaterTest {
                 new 
DatabaseDiscoveryRuleConfiguration(Collections.singleton(dataSourceRuleConfig), 
Collections.emptyMap(), Collections.emptyMap()));
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertCheckSQLStatementWithoutExistedResources() {
         
when(resourceMetaData.getNotExistedResources(any())).thenReturn(Collections.singleton("ds_read_0"));
         Properties props = new Properties();
diff --git 
a/features/encrypt/distsql/handler/src/main/java/org/apache/shardingsphere/encrypt/distsql/handler/update/CreateEncryptRuleStatementUpdater.java
 
b/features/encrypt/distsql/handler/src/main/java/org/apache/shardingsphere/encrypt/distsql/handler/update/CreateEncryptRuleStatementUpdater.java
index c3524239be2..bfd5809db67 100644
--- 
a/features/encrypt/distsql/handler/src/main/java/org/apache/shardingsphere/encrypt/distsql/handler/update/CreateEncryptRuleStatementUpdater.java
+++ 
b/features/encrypt/distsql/handler/src/main/java/org/apache/shardingsphere/encrypt/distsql/handler/update/CreateEncryptRuleStatementUpdater.java
@@ -24,7 +24,7 @@ import 
org.apache.shardingsphere.encrypt.distsql.parser.segment.EncryptColumnSeg
 import 
org.apache.shardingsphere.encrypt.distsql.parser.segment.EncryptRuleSegment;
 import 
org.apache.shardingsphere.encrypt.distsql.parser.statement.CreateEncryptRuleStatement;
 import org.apache.shardingsphere.encrypt.factory.EncryptAlgorithmFactory;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.EmptyResourceException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.EmptyStorageUnitException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.DuplicateRuleException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.InvalidRuleConfigurationException;
@@ -76,7 +76,7 @@ public final class CreateEncryptRuleStatementUpdater 
implements RuleDefinitionCr
     }
     
     private void checkDataSources(final ShardingSphereDatabase database) {
-        
ShardingSpherePreconditions.checkState(!database.getResourceMetaData().getDataSources().isEmpty(),
 () -> new EmptyResourceException(database.getName()));
+        
ShardingSpherePreconditions.checkState(!database.getResourceMetaData().getDataSources().isEmpty(),
 () -> new EmptyStorageUnitException(database.getName()));
     }
     
     @Override
diff --git 
a/features/readwrite-splitting/distsql/handler/src/main/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/checker/ReadwriteSplittingRuleStatementChecker.java
 
b/features/readwrite-splitting/distsql/handler/src/main/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/checker/ReadwriteSplittingRuleStatementChecker.java
index 6b57e3dac9f..83ef736316c 100644
--- 
a/features/readwrite-splitting/distsql/handler/src/main/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/checker/ReadwriteSplittingRuleStatementChecker.java
+++ 
b/features/readwrite-splitting/distsql/handler/src/main/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/checker/ReadwriteSplittingRuleStatementChecker.java
@@ -19,7 +19,7 @@ package 
org.apache.shardingsphere.readwritesplitting.distsql.handler.checker;
 
 import com.google.common.base.Strings;
 import 
org.apache.shardingsphere.infra.rule.identifier.type.exportable.constant.ExportableConstants;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.DuplicateRuleException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.InvalidRuleConfigurationException;
@@ -148,10 +148,10 @@ public final class ReadwriteSplittingRuleStatementChecker 
{
             }
         });
         Collection<String> notExistedDataSources = 
database.getResourceMetaData().getNotExistedResources(requiredDataSources);
-        
ShardingSpherePreconditions.checkState(notExistedDataSources.isEmpty(), () -> 
new MissingRequiredResourcesException(databaseName, notExistedDataSources));
+        
ShardingSpherePreconditions.checkState(notExistedDataSources.isEmpty(), () -> 
new MissingRequiredStorageUnitsException(databaseName, notExistedDataSources));
         Collection<String> logicalDataSources = getLogicDataSources(database);
         Collection<String> notExistedLogicalDataSources = 
requiredLogicalDataSources.stream().filter(each -> 
!logicalDataSources.contains(each)).collect(Collectors.toSet());
-        
ShardingSpherePreconditions.checkState(notExistedLogicalDataSources.isEmpty(), 
() -> new MissingRequiredResourcesException(databaseName, 
notExistedLogicalDataSources));
+        
ShardingSpherePreconditions.checkState(notExistedLogicalDataSources.isEmpty(), 
() -> new MissingRequiredStorageUnitsException(databaseName, 
notExistedLogicalDataSources));
     }
     
     @SuppressWarnings("unchecked")
diff --git 
a/features/readwrite-splitting/distsql/handler/src/test/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/update/AlterReadwriteSplittingRuleStatementUpdaterTest.java
 
b/features/readwrite-splitting/distsql/handler/src/test/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/update/AlterReadwriteSplittingRuleStatementUpdaterTest.java
index 94def6172b1..580f206317a 100644
--- 
a/features/readwrite-splitting/distsql/handler/src/test/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/update/AlterReadwriteSplittingRuleStatementUpdaterTest.java
+++ 
b/features/readwrite-splitting/distsql/handler/src/test/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/update/AlterReadwriteSplittingRuleStatementUpdaterTest.java
@@ -18,7 +18,7 @@
 package org.apache.shardingsphere.readwritesplitting.distsql.handler.update;
 
 import 
org.apache.shardingsphere.infra.rule.identifier.type.exportable.constant.ExportableConstants;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.InvalidRuleConfigurationException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.MissingRequiredRuleException;
@@ -74,13 +74,13 @@ public final class 
AlterReadwriteSplittingRuleStatementUpdaterTest {
         updater.checkSQLStatement(database, createSQLStatement("TEST"), new 
ReadwriteSplittingRuleConfiguration(Collections.emptyList(), 
Collections.emptyMap()));
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertCheckSQLStatementWithoutExistedResources() {
         
when(resourceMetaData.getNotExistedResources(any())).thenReturn(Collections.singleton("read_ds_0"));
         updater.checkSQLStatement(database, createSQLStatement("TEST"), 
createCurrentRuleConfiguration());
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertCheckSQLStatementWithoutExistedAutoAwareResources() {
         ExportableRule exportableRule = mock(ExportableRule.class);
         
when(exportableRule.getExportData()).thenReturn(Collections.singletonMap(ExportableConstants.EXPORT_DB_DISCOVERY_PRIMARY_DATA_SOURCES,
 Collections.singletonMap("ms_group", "ds_0")));
diff --git 
a/features/readwrite-splitting/distsql/handler/src/test/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/update/CreateReadwriteSplittingRuleStatementUpdaterTest.java
 
b/features/readwrite-splitting/distsql/handler/src/test/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/update/CreateReadwriteSplittingRuleStatementUpdaterTest.java
index 13dfa283f27..4952ee460dd 100644
--- 
a/features/readwrite-splitting/distsql/handler/src/test/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/update/CreateReadwriteSplittingRuleStatementUpdaterTest.java
+++ 
b/features/readwrite-splitting/distsql/handler/src/test/java/org/apache/shardingsphere/readwritesplitting/distsql/handler/update/CreateReadwriteSplittingRuleStatementUpdaterTest.java
@@ -18,7 +18,7 @@
 package org.apache.shardingsphere.readwritesplitting.distsql.handler.update;
 
 import 
org.apache.shardingsphere.infra.rule.identifier.type.exportable.constant.ExportableConstants;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.DuplicateRuleException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.InvalidRuleConfigurationException;
@@ -88,13 +88,13 @@ public final class 
CreateReadwriteSplittingRuleStatementUpdaterTest {
         updater.checkSQLStatement(database, createSQLStatement("write_ds", 
"TEST"), createCurrentRuleConfiguration());
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertCheckSQLStatementWithoutExistedResources() {
         
when(resourceMetaData.getNotExistedResources(any())).thenReturn(Arrays.asList("read_ds_0",
 "read_ds_1"));
         updater.checkSQLStatement(database, createSQLStatement("TEST"), null);
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertCheckSQLStatementWithoutExistedAutoAwareResources() {
         ExportableRule exportableRule = mock(ExportableRule.class);
         
when(exportableRule.getExportData()).thenReturn(Collections.singletonMap(ExportableConstants.EXPORT_DB_DISCOVERY_PRIMARY_DATA_SOURCES,
 Collections.singletonMap("ms_group", "ds_0")));
diff --git 
a/features/shadow/distsql/handler/src/main/java/org/apache/shardingsphere/shadow/distsql/handler/checker/ShadowRuleStatementChecker.java
 
b/features/shadow/distsql/handler/src/main/java/org/apache/shardingsphere/shadow/distsql/handler/checker/ShadowRuleStatementChecker.java
index ebb6806139e..8eccf2d717a 100644
--- 
a/features/shadow/distsql/handler/src/main/java/org/apache/shardingsphere/shadow/distsql/handler/checker/ShadowRuleStatementChecker.java
+++ 
b/features/shadow/distsql/handler/src/main/java/org/apache/shardingsphere/shadow/distsql/handler/checker/ShadowRuleStatementChecker.java
@@ -19,7 +19,7 @@ package 
org.apache.shardingsphere.shadow.distsql.handler.checker;
 
 import org.apache.shardingsphere.distsql.handler.exception.DistSQLException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.MissingRequiredRuleException;
 import 
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
 import 
org.apache.shardingsphere.infra.util.exception.ShardingSpherePreconditions;
@@ -55,7 +55,7 @@ public class ShadowRuleStatementChecker {
      */
     public static void checkStorageUnitsExist(final Collection<String> 
requiredStorageUnits, final ShardingSphereDatabase database) {
         Collection<String> notExistedStorageUnits = 
database.getResourceMetaData().getNotExistedResources(requiredStorageUnits);
-        
ShardingSpherePreconditions.checkState(notExistedStorageUnits.isEmpty(), () -> 
new MissingRequiredResourcesException(database.getName(), 
notExistedStorageUnits));
+        
ShardingSpherePreconditions.checkState(notExistedStorageUnits.isEmpty(), () -> 
new MissingRequiredStorageUnitsException(database.getName(), 
notExistedStorageUnits));
     }
     
     /**
diff --git 
a/features/shadow/distsql/handler/src/test/java/org/apache/shardingsphere/shadow/distsql/update/AlterShadowRuleStatementUpdaterTest.java
 
b/features/shadow/distsql/handler/src/test/java/org/apache/shardingsphere/shadow/distsql/update/AlterShadowRuleStatementUpdaterTest.java
index 69bd4775a44..8da4ab304bb 100644
--- 
a/features/shadow/distsql/handler/src/test/java/org/apache/shardingsphere/shadow/distsql/update/AlterShadowRuleStatementUpdaterTest.java
+++ 
b/features/shadow/distsql/handler/src/test/java/org/apache/shardingsphere/shadow/distsql/update/AlterShadowRuleStatementUpdaterTest.java
@@ -18,7 +18,7 @@
 package org.apache.shardingsphere.shadow.distsql.update;
 
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.AlgorithmInUsedException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.DuplicateRuleException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.MissingRequiredRuleException;
 import org.apache.shardingsphere.distsql.parser.segment.AlgorithmSegment;
@@ -88,7 +88,7 @@ public final class AlterShadowRuleStatementUpdaterTest {
         updater.checkSQLStatement(database, createSQLStatement(ruleSegment), 
currentConfig);
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertExecuteWithNotExistResource() {
         List<String> dataSources = Arrays.asList("ds", "ds0");
         
when(resourceMetaData.getNotExistedResources(any())).thenReturn(dataSources);
diff --git 
a/features/shadow/distsql/handler/src/test/java/org/apache/shardingsphere/shadow/distsql/update/CreateShadowRuleStatementUpdaterTest.java
 
b/features/shadow/distsql/handler/src/test/java/org/apache/shardingsphere/shadow/distsql/update/CreateShadowRuleStatementUpdaterTest.java
index 2efdf8d0f89..d163662381c 100644
--- 
a/features/shadow/distsql/handler/src/test/java/org/apache/shardingsphere/shadow/distsql/update/CreateShadowRuleStatementUpdaterTest.java
+++ 
b/features/shadow/distsql/handler/src/test/java/org/apache/shardingsphere/shadow/distsql/update/CreateShadowRuleStatementUpdaterTest.java
@@ -18,7 +18,7 @@
 package org.apache.shardingsphere.shadow.distsql.update;
 
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.DuplicateRuleException;
 import org.apache.shardingsphere.distsql.parser.segment.AlgorithmSegment;
 import 
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
@@ -77,7 +77,7 @@ public final class CreateShadowRuleStatementUpdaterTest {
         updater.checkSQLStatement(database, createSQLStatement(false, 
ruleSegment), currentConfig);
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertExecuteWithNotExistResource() {
         
when(resourceMetaData.getNotExistedResources(any())).thenReturn(Arrays.asList("ds0",
 "ds1"));
         CreateShadowRuleStatement sqlStatement = createSQLStatement(false, new 
ShadowRuleSegment("ruleName", "ds1", null, null));
diff --git 
a/features/sharding/distsql/handler/src/main/java/org/apache/shardingsphere/sharding/distsql/handler/checker/ShardingTableRuleStatementChecker.java
 
b/features/sharding/distsql/handler/src/main/java/org/apache/shardingsphere/sharding/distsql/handler/checker/ShardingTableRuleStatementChecker.java
index 412f8eb3265..ab387d3b6dd 100644
--- 
a/features/sharding/distsql/handler/src/main/java/org/apache/shardingsphere/sharding/distsql/handler/checker/ShardingTableRuleStatementChecker.java
+++ 
b/features/sharding/distsql/handler/src/main/java/org/apache/shardingsphere/sharding/distsql/handler/checker/ShardingTableRuleStatementChecker.java
@@ -21,7 +21,7 @@ import com.google.common.base.Preconditions;
 import com.google.common.base.Splitter;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.MissingRequiredAlgorithmException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.DuplicateRuleException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.InvalidRuleConfigurationException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.MissingRequiredRuleException;
@@ -161,7 +161,7 @@ public final class ShardingTableRuleStatementChecker {
         Collection<String> notExistedResources = 
database.getResourceMetaData().getNotExistedResources(requiredResource);
         Collection<String> logicResources = getLogicResources(database);
         notExistedResources.removeIf(logicResources::contains);
-        ShardingSpherePreconditions.checkState(notExistedResources.isEmpty(), 
() -> new MissingRequiredResourcesException(databaseName, notExistedResources));
+        ShardingSpherePreconditions.checkState(notExistedResources.isEmpty(), 
() -> new MissingRequiredStorageUnitsException(databaseName, 
notExistedResources));
     }
     
     private static Collection<String> getLogicResources(final 
ShardingSphereDatabase database) {
diff --git 
a/features/sharding/distsql/handler/src/test/java/org/apache/shardingsphere/sharding/distsql/checker/ShardingRuleStatementCheckerTest.java
 
b/features/sharding/distsql/handler/src/test/java/org/apache/shardingsphere/sharding/distsql/checker/ShardingRuleStatementCheckerTest.java
index d773ab7f385..7e1068b99ce 100644
--- 
a/features/sharding/distsql/handler/src/test/java/org/apache/shardingsphere/sharding/distsql/checker/ShardingRuleStatementCheckerTest.java
+++ 
b/features/sharding/distsql/handler/src/test/java/org/apache/shardingsphere/sharding/distsql/checker/ShardingRuleStatementCheckerTest.java
@@ -18,7 +18,7 @@
 package org.apache.shardingsphere.sharding.distsql.checker;
 
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.DuplicateRuleException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.MissingRequiredRuleException;
 import org.apache.shardingsphere.distsql.parser.segment.AlgorithmSegment;
@@ -125,7 +125,7 @@ public final class ShardingRuleStatementCheckerTest {
         ShardingTableRuleStatementChecker.checkAlteration(database, rules, 
shardingRuleConfig);
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertCheckCreationWithResourceRequiredMissed() {
         List<AbstractTableRuleSegment> rules = Collections.singletonList(new 
AutoTableRuleSegment("t_product", Arrays.asList("ds_required_missed", "ds_1")));
         ShardingTableRuleStatementChecker.checkCreation(database, rules, 
false, shardingRuleConfig);
diff --git 
a/infra/common/src/main/java/org/apache/shardingsphere/infra/instance/mode/ModeContextManager.java
 
b/infra/common/src/main/java/org/apache/shardingsphere/infra/instance/mode/ModeContextManager.java
index 6593f7c4535..5ed7d90bf52 100644
--- 
a/infra/common/src/main/java/org/apache/shardingsphere/infra/instance/mode/ModeContextManager.java
+++ 
b/infra/common/src/main/java/org/apache/shardingsphere/infra/instance/mode/ModeContextManager.java
@@ -54,7 +54,6 @@ public interface ModeContextManager {
      */
     void createSchema(String databaseName, String schemaName);
     
-    
     /**
      * Alter schema.
      *
diff --git 
a/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/MetaDataRefresher.java
 
b/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/MetaDataRefresher.java
index 4014889f4ad..01ffd8653ee 100644
--- 
a/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/MetaDataRefresher.java
+++ 
b/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/MetaDataRefresher.java
@@ -47,5 +47,5 @@ public interface MetaDataRefresher<T extends SQLStatement> 
extends TypedSPI {
      * @throws SQLException SQL exception
      */
     void refresh(ModeContextManager modeContextManager, ShardingSphereDatabase 
database, Collection<String> logicDataSourceNames, String schemaName,
-                                             T sqlStatement, 
ConfigurationProperties props) throws SQLException;
+                 T sqlStatement, ConfigurationProperties props) throws 
SQLException;
 }
diff --git 
a/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/type/table/AlterTableStatementSchemaRefresher.java
 
b/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/type/table/AlterTableStatementSchemaRefresher.java
index 72d30bbbc32..954453ce31a 100644
--- 
a/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/type/table/AlterTableStatementSchemaRefresher.java
+++ 
b/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/type/table/AlterTableStatementSchemaRefresher.java
@@ -67,8 +67,8 @@ public final class AlterTableStatementSchemaRefresher 
implements MetaDataRefresh
         GenericSchemaBuilderMaterial material = new 
GenericSchemaBuilderMaterial(database.getProtocolType(),
                 database.getResourceMetaData().getStorageTypes(), 
database.getResourceMetaData().getDataSources(), ruleMetaData.getRules(), 
props, schemaName);
         Map<String, ShardingSphereSchema> schemaMap = 
GenericSchemaBuilder.build(Collections.singletonList(tableName), material);
-        return Optional.ofNullable(schemaMap.get(schemaName)).map(optional -> 
optional.getTable(tableName)).orElseGet(() ->
-                new ShardingSphereTable(tableName, Collections.emptyList(), 
Collections.emptyList(), Collections.emptyList()));
+        return Optional.ofNullable(schemaMap.get(schemaName)).map(optional -> 
optional.getTable(tableName))
+                .orElseGet(() -> new ShardingSphereTable(tableName, 
Collections.emptyList(), Collections.emptyList(), Collections.emptyList()));
     }
     
     private boolean containsInImmutableDataNodeContainedRule(final String 
tableName, final ShardingSphereDatabase database) {
diff --git 
a/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/type/table/RenameTableStatementSchemaRefresher.java
 
b/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/type/table/RenameTableStatementSchemaRefresher.java
index 1b8ebddd57d..d399628a813 100644
--- 
a/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/type/table/RenameTableStatementSchemaRefresher.java
+++ 
b/infra/context/src/main/java/org/apache/shardingsphere/infra/context/refresher/type/table/RenameTableStatementSchemaRefresher.java
@@ -64,8 +64,8 @@ public final class RenameTableStatementSchemaRefresher 
implements MetaDataRefres
         GenericSchemaBuilderMaterial material = new 
GenericSchemaBuilderMaterial(database.getProtocolType(),
                 database.getResourceMetaData().getStorageTypes(), 
database.getResourceMetaData().getDataSources(), ruleMetaData.getRules(), 
props, schemaName);
         Map<String, ShardingSphereSchema> schemaMap = 
GenericSchemaBuilder.build(Collections.singletonList(tableName), material);
-        return Optional.ofNullable(schemaMap.get(schemaName)).map(optional -> 
optional.getTable(tableName)).orElseGet(() ->
-                new ShardingSphereTable(tableName, Collections.emptyList(), 
Collections.emptyList(), Collections.emptyList()));
+        return Optional.ofNullable(schemaMap.get(schemaName)).map(optional -> 
optional.getTable(tableName))
+                .orElseGet(() -> new ShardingSphereTable(tableName, 
Collections.emptyList(), Collections.emptyList(), Collections.emptyList()));
     }
     
     private boolean containsInImmutableDataNodeContainedRule(final String 
tableName, final ShardingSphereDatabase database) {
diff --git 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/DatabaseDiscoveryRuleConfigurationImportChecker.java
 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/DatabaseDiscoveryRuleConfigurationImportChecker.java
index ff2bc88eaaa..082927a402e 100644
--- 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/DatabaseDiscoveryRuleConfigurationImportChecker.java
+++ 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/DatabaseDiscoveryRuleConfigurationImportChecker.java
@@ -20,7 +20,7 @@ package 
org.apache.shardingsphere.proxy.backend.handler.distsql.ral.common.check
 import 
org.apache.shardingsphere.dbdiscovery.api.config.DatabaseDiscoveryRuleConfiguration;
 import 
org.apache.shardingsphere.dbdiscovery.factory.DatabaseDiscoveryProviderAlgorithmFactory;
 import org.apache.shardingsphere.infra.config.algorithm.AlgorithmConfiguration;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.MissingRequiredAlgorithmException;
 import 
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
@@ -56,7 +56,7 @@ public final class 
DatabaseDiscoveryRuleConfigurationImportChecker {
         Collection<String> requiredDataSources = new LinkedHashSet<>();
         currentRuleConfig.getDataSources().forEach(each -> 
requiredDataSources.addAll(each.getDataSourceNames()));
         Collection<String> notExistedDataSources = 
database.getResourceMetaData().getNotExistedResources(requiredDataSources);
-        
ShardingSpherePreconditions.checkState(notExistedDataSources.isEmpty(), () -> 
new MissingRequiredResourcesException(databaseName, notExistedDataSources));
+        
ShardingSpherePreconditions.checkState(notExistedDataSources.isEmpty(), () -> 
new MissingRequiredStorageUnitsException(databaseName, notExistedDataSources));
     }
     
     private void checkDiscoverTypeAndHeartbeat(final String databaseName, 
final DatabaseDiscoveryRuleConfiguration currentRuleConfig) {
diff --git 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/ReadwriteSplittingRuleConfigurationImportChecker.java
 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/ReadwriteSplittingRuleConfigurationImportChecker.java
index 1733a98a1b4..1c0a8f40193 100644
--- 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/ReadwriteSplittingRuleConfigurationImportChecker.java
+++ 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/ReadwriteSplittingRuleConfigurationImportChecker.java
@@ -18,7 +18,7 @@
 package 
org.apache.shardingsphere.proxy.backend.handler.distsql.ral.common.checker;
 
 import org.apache.shardingsphere.infra.config.algorithm.AlgorithmConfiguration;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
 import 
org.apache.shardingsphere.infra.rule.identifier.type.DataSourceContainedRule;
@@ -67,10 +67,10 @@ public final class 
ReadwriteSplittingRuleConfigurationImportChecker {
             }
         });
         Collection<String> notExistedDataSources = 
database.getResourceMetaData().getNotExistedResources(requiredDataSources);
-        
ShardingSpherePreconditions.checkState(notExistedDataSources.isEmpty(), () -> 
new MissingRequiredResourcesException(databaseName, notExistedDataSources));
+        
ShardingSpherePreconditions.checkState(notExistedDataSources.isEmpty(), () -> 
new MissingRequiredStorageUnitsException(databaseName, notExistedDataSources));
         Collection<String> logicalDataSources = getLogicDataSources(database);
         Collection<String> notExistedLogicalDataSources = 
requiredLogicalDataSources.stream().filter(each -> 
!logicalDataSources.contains(each)).collect(Collectors.toSet());
-        
ShardingSpherePreconditions.checkState(notExistedLogicalDataSources.isEmpty(), 
() -> new MissingRequiredResourcesException(databaseName, 
notExistedLogicalDataSources));
+        
ShardingSpherePreconditions.checkState(notExistedLogicalDataSources.isEmpty(), 
() -> new MissingRequiredStorageUnitsException(databaseName, 
notExistedLogicalDataSources));
     }
     
     private Collection<String> getLogicDataSources(final 
ShardingSphereDatabase database) {
diff --git 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/ShardingRuleConfigurationImportChecker.java
 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/ShardingRuleConfigurationImportChecker.java
index 330d5409c9b..d78f1785029 100644
--- 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/ShardingRuleConfigurationImportChecker.java
+++ 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/ShardingRuleConfigurationImportChecker.java
@@ -20,7 +20,7 @@ package 
org.apache.shardingsphere.proxy.backend.handler.distsql.ral.common.check
 import org.apache.shardingsphere.infra.config.algorithm.AlgorithmConfiguration;
 import org.apache.shardingsphere.infra.algorithm.ShardingSphereAlgorithm;
 import org.apache.shardingsphere.infra.datanode.DataNode;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.exception.rule.DuplicateRuleException;
 import 
org.apache.shardingsphere.distsql.handler.exception.algorithm.InvalidAlgorithmConfigurationException;
 import 
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
@@ -124,7 +124,7 @@ public final class ShardingRuleConfigurationImportChecker {
         Collection<String> notExistedResources = 
database.getResourceMetaData().getNotExistedResources(requiredResource);
         Collection<String> logicResources = getLogicResources(database);
         notExistedResources.removeIf(logicResources::contains);
-        ShardingSpherePreconditions.checkState(notExistedResources.isEmpty(), 
() -> new MissingRequiredResourcesException(databaseName, notExistedResources));
+        ShardingSpherePreconditions.checkState(notExistedResources.isEmpty(), 
() -> new MissingRequiredStorageUnitsException(databaseName, 
notExistedResources));
     }
     
     private Collection<String> getLogicResources(final ShardingSphereDatabase 
database) {
diff --git 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/AlterReadwriteSplittingStorageUnitStatusStatementHandler.java
 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/AlterReadwriteSplittingStorageUnitStatusStatementHandler.java
index 7428d906528..863a6bdea46 100644
--- 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/AlterReadwriteSplittingStorageUnitStatusStatementHandler.java
+++ 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/AlterReadwriteSplittingStorageUnitStatusStatementHandler.java
@@ -23,7 +23,7 @@ import 
org.apache.shardingsphere.dialect.exception.syntax.database.NoDatabaseSel
 import 
org.apache.shardingsphere.dialect.exception.syntax.database.UnknownDatabaseException;
 import 
org.apache.shardingsphere.infra.rule.identifier.type.exportable.constant.ExportableConstants;
 import 
org.apache.shardingsphere.infra.rule.identifier.type.exportable.constant.ExportableItemConstants;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.infra.metadata.database.schema.QualifiedDatabase;
 import 
org.apache.shardingsphere.infra.rule.identifier.type.exportable.RuleExportEngine;
 import 
org.apache.shardingsphere.infra.util.exception.ShardingSpherePreconditions;
@@ -135,7 +135,7 @@ public final class 
AlterReadwriteSplittingStorageUnitStatusStatementHandler exte
     private void checkResourceExists(final ContextManager contextManager, 
final String databaseName, final String toBeDisabledResource) {
         Collection<String> notExistedResources = contextManager
                 
.getMetaDataContexts().getMetaData().getDatabase(databaseName).getResourceMetaData().getNotExistedResources(Collections.singleton(toBeDisabledResource));
-        ShardingSpherePreconditions.checkState(notExistedResources.isEmpty(), 
() -> new MissingRequiredResourcesException(databaseName, 
Collections.singleton(toBeDisabledResource)));
+        ShardingSpherePreconditions.checkState(notExistedResources.isEmpty(), 
() -> new MissingRequiredStorageUnitsException(databaseName, 
Collections.singleton(toBeDisabledResource)));
     }
     
     private void checkIsNotDisabled(final Collection<String> 
disabledResources, final String toBeEnabledResource) {
diff --git 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/ImportDatabaseConfigurationHandler.java
 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/ImportDatabaseConfigurationHandler.java
index f99800d0cb5..5f0d0d8ebe7 100644
--- 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/ImportDatabaseConfigurationHandler.java
+++ 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/ImportDatabaseConfigurationHandler.java
@@ -31,7 +31,7 @@ import 
org.apache.shardingsphere.infra.config.rule.RuleConfiguration;
 import org.apache.shardingsphere.infra.datasource.props.DataSourceProperties;
 import 
org.apache.shardingsphere.infra.datasource.props.DataSourcePropertiesCreator;
 import org.apache.shardingsphere.distsql.handler.exception.DistSQLException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.InvalidResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.InvalidStorageUnitsException;
 import 
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
 import org.apache.shardingsphere.infra.util.yaml.YamlEngine;
 import 
org.apache.shardingsphere.infra.yaml.config.pojo.rule.YamlRuleConfiguration;
@@ -127,7 +127,7 @@ public final class ImportDatabaseConfigurationHandler 
extends UpdatableRALBacken
         try {
             
ProxyContext.getInstance().getContextManager().getInstanceContext().getModeContextManager().registerStorageUnits(databaseName,
 dataSourcePropsMap);
         } catch (final SQLException ex) {
-            throw new 
InvalidResourcesException(Collections.singleton(ex.getMessage()));
+            throw new 
InvalidStorageUnitsException(Collections.singleton(ex.getMessage()));
         }
     }
     
diff --git 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/RefreshTableMetaDataHandler.java
 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/RefreshTableMetaDataHandler.java
index fef3ea83889..14653079110 100644
--- 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/RefreshTableMetaDataHandler.java
+++ 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/RefreshTableMetaDataHandler.java
@@ -22,8 +22,8 @@ import 
org.apache.shardingsphere.dialect.exception.syntax.database.NoDatabaseSel
 import 
org.apache.shardingsphere.dialect.exception.syntax.database.UnknownDatabaseException;
 import 
org.apache.shardingsphere.distsql.parser.statement.ral.updatable.RefreshTableMetaDataStatement;
 import org.apache.shardingsphere.infra.database.type.DatabaseTypeEngine;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.EmptyResourceException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.EmptyStorageUnitException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.infra.util.exception.ShardingSpherePreconditions;
 import org.apache.shardingsphere.mode.manager.ContextManager;
 import org.apache.shardingsphere.proxy.backend.context.ProxyContext;
@@ -59,10 +59,10 @@ public final class RefreshTableMetaDataHandler extends 
UpdatableRALBackendHandle
     }
     
     private void checkDataSources(final String databaseName, final Map<String, 
DataSource> dataSources) {
-        ShardingSpherePreconditions.checkState(!dataSources.isEmpty(), () -> 
new EmptyResourceException(databaseName));
+        ShardingSpherePreconditions.checkState(!dataSources.isEmpty(), () -> 
new EmptyStorageUnitException(databaseName));
         if (getSqlStatement().getStorageUnitName().isPresent()) {
             String storageUnitName = 
getSqlStatement().getStorageUnitName().get();
-            
ShardingSpherePreconditions.checkState(dataSources.containsKey(storageUnitName),
 () -> new MissingRequiredResourcesException(databaseName, 
Collections.singletonList(storageUnitName)));
+            
ShardingSpherePreconditions.checkState(dataSources.containsKey(storageUnitName),
 () -> new MissingRequiredStorageUnitsException(databaseName, 
Collections.singletonList(storageUnitName)));
         }
     }
     
diff --git 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/AlterStorageUnitBackendHandler.java
 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/AlterStorageUnitBackendHandler.java
index f3853601b7d..188d7bc1e72 100644
--- 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/AlterStorageUnitBackendHandler.java
+++ 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/AlterStorageUnitBackendHandler.java
@@ -29,9 +29,9 @@ import 
org.apache.shardingsphere.infra.database.metadata.url.StandardJdbcUrlPars
 import org.apache.shardingsphere.infra.database.type.DatabaseType;
 import org.apache.shardingsphere.infra.datasource.props.DataSourceProperties;
 import 
org.apache.shardingsphere.infra.datasource.props.DataSourcePropertiesCreator;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.DuplicateResourceException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.InvalidResourcesException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.DuplicateStorageUnitException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.InvalidStorageUnitsException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.infra.util.exception.ShardingSpherePreconditions;
 import 
org.apache.shardingsphere.infra.util.exception.external.server.ShardingSphereServerException;
 import org.apache.shardingsphere.proxy.backend.context.ProxyContext;
@@ -74,7 +74,7 @@ public final class AlterStorageUnitBackendHandler extends 
DatabaseRequiredBacken
             
ProxyContext.getInstance().getContextManager().getInstanceContext().getModeContextManager().alterStorageUnits(databaseName,
 dataSourcePropsMap);
         } catch (final SQLException | ShardingSphereServerException ex) {
             log.error("Alter storage unit failed", ex);
-            throw new 
InvalidResourcesException(Collections.singleton(ex.getMessage()));
+            throw new 
InvalidStorageUnitsException(Collections.singleton(ex.getMessage()));
         }
         return new UpdateResponseHeader(sqlStatement);
     }
@@ -93,7 +93,7 @@ public final class AlterStorageUnitBackendHandler extends 
DatabaseRequiredBacken
     
     private void checkDuplicatedStorageUnitNames(final Collection<String> 
storageUnitNames) {
         Collection<String> duplicatedStorageUnitNames = 
getDuplicatedStorageUnitNames(storageUnitNames);
-        
ShardingSpherePreconditions.checkState(duplicatedStorageUnitNames.isEmpty(), () 
-> new DuplicateResourceException(duplicatedStorageUnitNames));
+        
ShardingSpherePreconditions.checkState(duplicatedStorageUnitNames.isEmpty(), () 
-> new DuplicateStorageUnitException(duplicatedStorageUnitNames));
     }
     
     private Collection<String> getDuplicatedStorageUnitNames(final 
Collection<String> storageUnitNames) {
@@ -103,7 +103,7 @@ public final class AlterStorageUnitBackendHandler extends 
DatabaseRequiredBacken
     private void checkStorageUnitNameExisted(final String databaseName, final 
Collection<String> storageUnitNames) {
         Map<String, DataSource> storageUnits = 
ProxyContext.getInstance().getDatabase(databaseName).getResourceMetaData().getDataSources();
         Collection<String> notExistedStorageUnitNames = 
storageUnitNames.stream().filter(each -> 
!storageUnits.containsKey(each)).collect(Collectors.toList());
-        
ShardingSpherePreconditions.checkState(notExistedStorageUnitNames.isEmpty(), () 
-> new MissingRequiredResourcesException(databaseName, 
notExistedStorageUnitNames));
+        
ShardingSpherePreconditions.checkState(notExistedStorageUnitNames.isEmpty(), () 
-> new MissingRequiredStorageUnitsException(databaseName, 
notExistedStorageUnitNames));
     }
     
     private void checkDatabase(final String databaseName, final 
AlterStorageUnitStatement sqlStatement) {
@@ -111,7 +111,7 @@ public final class AlterStorageUnitBackendHandler extends 
DatabaseRequiredBacken
         Collection<String> invalidStorageUnitNames = 
sqlStatement.getStorageUnits().stream().collect(Collectors.toMap(DataSourceSegment::getName,
 each -> each)).entrySet().stream()
                 .filter(each -> !isIdenticalDatabase(each.getValue(), 
storageUnits.get(each.getKey()))).map(Entry::getKey).collect(Collectors.toSet());
         
ShardingSpherePreconditions.checkState(invalidStorageUnitNames.isEmpty(),
-                () -> new 
InvalidResourcesException(Collections.singleton(String.format("Cannot alter the 
database of %s", invalidStorageUnitNames))));
+                () -> new 
InvalidStorageUnitsException(Collections.singleton(String.format("Cannot alter 
the database of %s", invalidStorageUnitNames))));
     }
     
     private boolean isIdenticalDatabase(final DataSourceSegment segment, final 
DataSource dataSource) {
diff --git 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/RegisterStorageUnitBackendHandler.java
 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/RegisterStorageUnitBackendHandler.java
index 332f41f2b13..c9fe7bb7a81 100644
--- 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/RegisterStorageUnitBackendHandler.java
+++ 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/RegisterStorageUnitBackendHandler.java
@@ -18,8 +18,8 @@
 package org.apache.shardingsphere.proxy.backend.handler.distsql.rdl.resource;
 
 import lombok.extern.slf4j.Slf4j;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.DuplicateResourceException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.InvalidResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.DuplicateStorageUnitException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.InvalidStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.validate.DataSourcePropertiesValidateHandler;
 import org.apache.shardingsphere.distsql.parser.segment.DataSourceSegment;
 import 
org.apache.shardingsphere.distsql.parser.segment.converter.DataSourceSegmentsConverter;
@@ -77,7 +77,7 @@ public final class RegisterStorageUnitBackendHandler extends 
DatabaseRequiredBac
             
ProxyContext.getInstance().getContextManager().getInstanceContext().getModeContextManager().registerStorageUnits(databaseName,
 dataSourcePropsMap);
         } catch (final SQLException | ShardingSphereServerException ex) {
             log.error("Register storage unit failed", ex);
-            throw new 
InvalidResourcesException(Collections.singleton(ex.getMessage()));
+            throw new 
InvalidStorageUnitsException(Collections.singleton(ex.getMessage()));
         }
         return new UpdateResponseHeader(sqlStatement);
     }
@@ -99,7 +99,7 @@ public final class RegisterStorageUnitBackendHandler extends 
DatabaseRequiredBac
             }
             dataSourceNames.add(each.getName());
         }
-        
ShardingSpherePreconditions.checkState(duplicatedDataSourceNames.isEmpty(), () 
-> new DuplicateResourceException(duplicatedDataSourceNames));
+        
ShardingSpherePreconditions.checkState(duplicatedDataSourceNames.isEmpty(), () 
-> new DuplicateStorageUnitException(duplicatedDataSourceNames));
     }
     
     private void checkDuplicatedLogicalDataSourceNames(final String 
databaseName, final Collection<String> requiredDataSourceNames) {
@@ -109,7 +109,7 @@ public final class RegisterStorageUnitBackendHandler 
extends DatabaseRequiredBac
         }
         Collection<String> duplicatedDataSourceNames = 
requiredDataSourceNames.stream().filter(logicalDataSourceNames::contains).collect(Collectors.toSet());
         
ShardingSpherePreconditions.checkState(duplicatedDataSourceNames.isEmpty(),
-                () -> new 
InvalidResourcesException(Collections.singleton(String.format("%s already 
existed in rule", duplicatedDataSourceNames))));
+                () -> new 
InvalidStorageUnitsException(Collections.singleton(String.format("%s already 
existed in rule", duplicatedDataSourceNames))));
     }
     
     private Collection<String> getCurrentStorageUnitNames(final String 
databaseName) {
diff --git 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/UnregisterStorageUnitBackendHandler.java
 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/UnregisterStorageUnitBackendHandler.java
index 7931b29755f..201b93309fc 100644
--- 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/UnregisterStorageUnitBackendHandler.java
+++ 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/UnregisterStorageUnitBackendHandler.java
@@ -22,9 +22,9 @@ import com.google.common.collect.Multimap;
 import lombok.extern.slf4j.Slf4j;
 import 
org.apache.shardingsphere.distsql.parser.statement.rdl.drop.UnregisterStorageUnitStatement;
 import org.apache.shardingsphere.infra.datanode.DataNode;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.InvalidResourcesException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.ResourceInUsedException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.InvalidStorageUnitsException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.StorageUnitInUsedException;
 import org.apache.shardingsphere.infra.rule.ShardingSphereRule;
 import 
org.apache.shardingsphere.infra.rule.identifier.type.DataNodeContainedRule;
 import 
org.apache.shardingsphere.infra.rule.identifier.type.DataSourceContainedRule;
@@ -62,7 +62,7 @@ public final class UnregisterStorageUnitBackendHandler 
extends DatabaseRequiredB
             
ProxyContext.getInstance().getContextManager().getInstanceContext().getModeContextManager().unregisterStorageUnits(databaseName,
 sqlStatement.getStorageUnitNames());
         } catch (final SQLException | ShardingSphereServerException ex) {
             log.error("Unregister storage unit failed", ex);
-            throw new 
InvalidResourcesException(Collections.singleton(ex.getMessage()));
+            throw new 
InvalidStorageUnitsException(Collections.singleton(ex.getMessage()));
         }
         return new UpdateResponseHeader(sqlStatement);
     }
@@ -78,7 +78,7 @@ public final class UnregisterStorageUnitBackendHandler 
extends DatabaseRequiredB
     private void checkExisted(final String databaseName, final 
Collection<String> storageUnitNames) {
         Map<String, DataSource> dataSources = 
ProxyContext.getInstance().getDatabase(databaseName).getResourceMetaData().getDataSources();
         Collection<String> notExistedStorageUnits = 
storageUnitNames.stream().filter(each -> 
!dataSources.containsKey(each)).collect(Collectors.toList());
-        
ShardingSpherePreconditions.checkState(notExistedStorageUnits.isEmpty(), () -> 
new MissingRequiredResourcesException(databaseName, notExistedStorageUnits));
+        
ShardingSpherePreconditions.checkState(notExistedStorageUnits.isEmpty(), () -> 
new MissingRequiredStorageUnitsException(databaseName, notExistedStorageUnits));
     }
     
     private void checkInUsed(final String databaseName, final 
UnregisterStorageUnitStatement sqlStatement) {
@@ -90,7 +90,7 @@ public final class UnregisterStorageUnitBackendHandler 
extends DatabaseRequiredB
                 checkInUsedIgnoreSingleTables(new 
HashSet<>(inUsedStorageUnitNames), inUsedStorageUnits);
             } else {
                 String firstResource = 
inUsedStorageUnitNames.iterator().next();
-                throw new ResourceInUsedException(firstResource, 
inUsedStorageUnits.get(firstResource));
+                throw new StorageUnitInUsedException(firstResource, 
inUsedStorageUnits.get(firstResource));
             }
         }
     }
@@ -128,7 +128,7 @@ public final class UnregisterStorageUnitBackendHandler 
extends DatabaseRequiredB
         for (String each : inUsedResourceNames) {
             Collection<String> inUsedRules = inUsedStorageUnits.get(each);
             inUsedRules.remove(SingleRule.class.getSimpleName());
-            ShardingSpherePreconditions.checkState(inUsedRules.isEmpty(), () 
-> new ResourceInUsedException(each, inUsedRules));
+            ShardingSpherePreconditions.checkState(inUsedRules.isEmpty(), () 
-> new StorageUnitInUsedException(each, inUsedRules));
         }
     }
 }
diff --git 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/rule/SetDefaultSingleTableStorageUnitStatementUpdater.java
 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/rule/SetDefaultSingleTableStorageUnitStatementUpdater.java
index 15074ec2516..060f1485167 100644
--- 
a/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/rule/SetDefaultSingleTableStorageUnitStatementUpdater.java
+++ 
b/proxy/backend/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/rule/SetDefaultSingleTableStorageUnitStatementUpdater.java
@@ -19,7 +19,7 @@ package 
org.apache.shardingsphere.proxy.backend.handler.distsql.rdl.rule;
 
 import org.apache.commons.lang3.StringUtils;
 import 
org.apache.shardingsphere.distsql.parser.statement.rdl.create.SetDefaultSingleTableStorageUnitStatement;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.update.RuleDefinitionCreateUpdater;
 import 
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
 import 
org.apache.shardingsphere.infra.util.exception.ShardingSpherePreconditions;
@@ -42,7 +42,7 @@ public final class 
SetDefaultSingleTableStorageUnitStatementUpdater implements R
         if (StringUtils.isNotBlank(sqlStatement.getDefaultStorageUnit())) {
             Collection<String> storageUnitNames = 
database.getResourceMetaData().getDataSources().keySet();
             
ShardingSpherePreconditions.checkState(storageUnitNames.contains(sqlStatement.getDefaultStorageUnit()),
-                    () -> new 
MissingRequiredResourcesException(database.getName(), 
Collections.singleton(sqlStatement.getDefaultStorageUnit())));
+                    () -> new 
MissingRequiredStorageUnitsException(database.getName(), 
Collections.singleton(sqlStatement.getDefaultStorageUnit())));
         }
     }
     
diff --git 
a/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/RefreshTableMetaDataHandlerTest.java
 
b/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/RefreshTableMetaDataHandlerTest.java
index 2f0eb5ea15e..0b16f39a52b 100644
--- 
a/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/RefreshTableMetaDataHandlerTest.java
+++ 
b/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/updatable/RefreshTableMetaDataHandlerTest.java
@@ -22,8 +22,8 @@ import 
org.apache.shardingsphere.dialect.exception.syntax.database.UnknownDataba
 import 
org.apache.shardingsphere.distsql.parser.statement.ral.updatable.RefreshTableMetaDataStatement;
 import org.apache.shardingsphere.infra.config.props.ConfigurationProperties;
 import org.apache.shardingsphere.infra.config.props.ConfigurationPropertyKey;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.EmptyResourceException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.EmptyStorageUnitException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import org.apache.shardingsphere.infra.metadata.ShardingSphereMetaData;
 import org.apache.shardingsphere.mode.manager.ContextManager;
 import org.apache.shardingsphere.proxy.backend.context.ProxyContext;
@@ -80,7 +80,7 @@ public final class RefreshTableMetaDataHandlerTest extends 
ProxyContextRestorer
         backendHandler.execute();
     }
     
-    @Test(expected = EmptyResourceException.class)
+    @Test(expected = EmptyStorageUnitException.class)
     public void assertEmptyResource() throws SQLException {
         when(connectionSession.getDatabaseName()).thenReturn("sharding_db");
         
when(shardingSphereMetaData.containsDatabase("sharding_db")).thenReturn(true);
@@ -90,7 +90,7 @@ public final class RefreshTableMetaDataHandlerTest extends 
ProxyContextRestorer
         backendHandler.execute();
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertMissingRequiredResources() throws SQLException {
         when(connectionSession.getDatabaseName()).thenReturn("sharding_db");
         
when(shardingSphereMetaData.containsDatabase("sharding_db")).thenReturn(true);
diff --git 
a/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/AlterStorageUnitBackendHandlerTest.java
 
b/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/AlterStorageUnitBackendHandlerTest.java
index 89ce020467e..f95623cbd1e 100644
--- 
a/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/AlterStorageUnitBackendHandlerTest.java
+++ 
b/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/AlterStorageUnitBackendHandlerTest.java
@@ -18,9 +18,9 @@
 package org.apache.shardingsphere.proxy.backend.handler.distsql.rdl.resource;
 
 import com.zaxxer.hikari.HikariDataSource;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.DuplicateResourceException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.InvalidResourcesException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.DuplicateStorageUnitException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.InvalidStorageUnitsException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.validate.DataSourcePropertiesValidateHandler;
 import org.apache.shardingsphere.distsql.parser.segment.DataSourceSegment;
 import 
org.apache.shardingsphere.distsql.parser.segment.HostnameAndPortBasedDataSourceSegment;
@@ -101,12 +101,12 @@ public final class AlterStorageUnitBackendHandlerTest 
extends ProxyContextRestor
         assertThat(alterStorageUnitBackendHandler.execute("test_db", 
createAlterStorageUnitStatement("ds_0")), 
instanceOf(UpdateResponseHeader.class));
     }
     
-    @Test(expected = DuplicateResourceException.class)
+    @Test(expected = DuplicateStorageUnitException.class)
     public void assertExecuteWithDuplicateStorageUnitNames() {
         alterStorageUnitBackendHandler.execute("test_db", 
createAlterStorageUnitStatementWithDuplicateStorageUnitNames());
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertExecuteWithNotExistedStorageUnitNames() {
         ContextManager contextManager = mock(ContextManager.class, 
RETURNS_DEEP_STUBS);
         
when(contextManager.getMetaDataContexts()).thenReturn(metaDataContexts);
@@ -117,7 +117,7 @@ public final class AlterStorageUnitBackendHandlerTest 
extends ProxyContextRestor
         alterStorageUnitBackendHandler.execute("test_db", 
createAlterStorageUnitStatement("not_existed"));
     }
     
-    @Test(expected = InvalidResourcesException.class)
+    @Test(expected = InvalidStorageUnitsException.class)
     public void assertExecuteWithAlterDatabase() {
         ContextManager contextManager = mock(ContextManager.class, 
RETURNS_DEEP_STUBS);
         
when(contextManager.getMetaDataContexts()).thenReturn(metaDataContexts);
diff --git 
a/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/RegisterStorageUnitBackendHandlerTest.java
 
b/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/RegisterStorageUnitBackendHandlerTest.java
index b098d92f9bd..364acd3b9c6 100644
--- 
a/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/RegisterStorageUnitBackendHandlerTest.java
+++ 
b/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/RegisterStorageUnitBackendHandlerTest.java
@@ -17,8 +17,8 @@
 
 package org.apache.shardingsphere.proxy.backend.handler.distsql.rdl.resource;
 
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.DuplicateResourceException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.InvalidResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.DuplicateStorageUnitException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.InvalidStorageUnitsException;
 import 
org.apache.shardingsphere.distsql.handler.validate.DataSourcePropertiesValidateHandler;
 import org.apache.shardingsphere.distsql.parser.segment.DataSourceSegment;
 import 
org.apache.shardingsphere.distsql.parser.segment.HostnameAndPortBasedDataSourceSegment;
@@ -96,7 +96,7 @@ public final class RegisterStorageUnitBackendHandlerTest 
extends ProxyContextRes
         assertThat(responseHeader, instanceOf(UpdateResponseHeader.class));
     }
     
-    @Test(expected = DuplicateResourceException.class)
+    @Test(expected = DuplicateStorageUnitException.class)
     public void assertExecuteWithDuplicateStorageUnitNamesInStatement() {
         ContextManager contextManager = mock(ContextManager.class, 
RETURNS_DEEP_STUBS);
         
when(contextManager.getMetaDataContexts()).thenReturn(metaDataContexts);
@@ -104,7 +104,7 @@ public final class RegisterStorageUnitBackendHandlerTest 
extends ProxyContextRes
         registerStorageUnitBackendHandler.execute("test_db", 
createRegisterStorageUnitStatementWithDuplicateStorageUnitNames());
     }
     
-    @Test(expected = DuplicateResourceException.class)
+    @Test(expected = DuplicateStorageUnitException.class)
     public void 
assertExecuteWithDuplicateStorageUnitNamesWithResourceMetaData() {
         ContextManager contextManager = mock(ContextManager.class, 
RETURNS_DEEP_STUBS);
         ProxyContext.init(contextManager);
@@ -112,7 +112,7 @@ public final class RegisterStorageUnitBackendHandlerTest 
extends ProxyContextRes
         registerStorageUnitBackendHandler.execute("test_db", 
createRegisterStorageUnitStatement());
     }
     
-    @Test(expected = InvalidResourcesException.class)
+    @Test(expected = InvalidStorageUnitsException.class)
     public void 
assertExecuteWithDuplicateStorageUnitNamesWithDataSourceContainedRule() {
         ContextManager contextManager = mock(ContextManager.class, 
RETURNS_DEEP_STUBS);
         
when(contextManager.getMetaDataContexts()).thenReturn(metaDataContexts);
diff --git 
a/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/UnregisterStorageUnitBackendHandlerTest.java
 
b/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/UnregisterStorageUnitBackendHandlerTest.java
index 8192c5e8511..493b5e18567 100644
--- 
a/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/UnregisterStorageUnitBackendHandlerTest.java
+++ 
b/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/resource/UnregisterStorageUnitBackendHandlerTest.java
@@ -20,8 +20,8 @@ package 
org.apache.shardingsphere.proxy.backend.handler.distsql.rdl.resource;
 import 
org.apache.shardingsphere.distsql.parser.statement.rdl.drop.UnregisterStorageUnitStatement;
 import org.apache.shardingsphere.infra.datanode.DataNode;
 import org.apache.shardingsphere.distsql.handler.exception.DistSQLException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.ResourceInUsedException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.StorageUnitInUsedException;
 import org.apache.shardingsphere.infra.instance.mode.ModeContextManager;
 import 
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
 import 
org.apache.shardingsphere.infra.metadata.database.resource.ShardingSphereResourceMetaData;
@@ -112,12 +112,12 @@ public final class 
UnregisterStorageUnitBackendHandlerTest extends ProxyContextR
         verify(modeContextManager).unregisterStorageUnits("test", 
unregisterStorageUnitStatement.getStorageUnitNames());
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertStorageUnitNameNotExistedExecute() {
         unregisterStorageUnitBackendHandler.execute("test", new 
UnregisterStorageUnitStatement(Collections.singleton("foo_ds"), false));
     }
     
-    @Test(expected = ResourceInUsedException.class)
+    @Test(expected = StorageUnitInUsedException.class)
     public void assertStorageUnitNameInUseExecute() {
         
when(ruleMetaData.getRules()).thenReturn(Collections.singleton(shadowRule));
         when(shadowRule.getType()).thenReturn("ShadowRule");
@@ -128,7 +128,7 @@ public final class UnregisterStorageUnitBackendHandlerTest 
extends ProxyContextR
         unregisterStorageUnitBackendHandler.execute("test", new 
UnregisterStorageUnitStatement(Collections.singleton("foo_ds"), false));
     }
     
-    @Test(expected = ResourceInUsedException.class)
+    @Test(expected = StorageUnitInUsedException.class)
     public void assertStorageUnitNameInUseWithoutIgnoreSingleTables() {
         
when(ruleMetaData.getRules()).thenReturn(Collections.singleton(singleTableRule));
         when(singleTableRule.getType()).thenReturn("SingleTableRule");
diff --git 
a/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/rule/SetDefaultSingleTableStorageUnitUpdaterTest.java
 
b/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/rule/SetDefaultSingleTableStorageUnitUpdaterTest.java
index 0f23398adcd..c639418cd3d 100644
--- 
a/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/rule/SetDefaultSingleTableStorageUnitUpdaterTest.java
+++ 
b/proxy/backend/src/test/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rdl/rule/SetDefaultSingleTableStorageUnitUpdaterTest.java
@@ -18,7 +18,7 @@
 package org.apache.shardingsphere.proxy.backend.handler.distsql.rdl.rule;
 
 import 
org.apache.shardingsphere.distsql.parser.statement.rdl.create.SetDefaultSingleTableStorageUnitStatement;
-import 
org.apache.shardingsphere.distsql.handler.exception.resource.MissingRequiredResourcesException;
+import 
org.apache.shardingsphere.distsql.handler.exception.storageunit.MissingRequiredStorageUnitsException;
 import 
org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
 import org.apache.shardingsphere.single.api.config.SingleRuleConfiguration;
 import org.apache.shardingsphere.test.fixture.jdbc.MockedDataSource;
@@ -54,7 +54,7 @@ public final class 
SetDefaultSingleTableStorageUnitUpdaterTest {
         
when(database.getResourceMetaData().getDataSources()).thenReturn(Collections.singletonMap("ds_0",
 new MockedDataSource()));
     }
     
-    @Test(expected = MissingRequiredResourcesException.class)
+    @Test(expected = MissingRequiredStorageUnitsException.class)
     public void assertCheckWithInvalidResource() {
         updater.checkSQLStatement(database, new 
SetDefaultSingleTableStorageUnitStatement("ds_1"), currentConfig);
     }


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