Pinkman-oss opened a new issue, #28019: URL: https://github.com/apache/shardingsphere/issues/28019
## Question **For English only**, other languages will not accept. Before asking a question, make sure you have: - Googled your question. - Searched open and closed [GitHub issues](https://github.com/apache/shardingsphere/issues). - Read documentation: [ShardingSphere Doc](https://shardingsphere.apache.org/document/current/en/overview). When I run a SQL statement to access the actual table, the following error occurs: Please pay attention on issues you submitted, because we maybe need more details. If no response anymore and we cannot reproduce it on current information, we will **close it**. `### Cause: java.sql.SQLException: Unknown exception: null ; uncategorized SQLException; SQL state [HY000]; error code [30000]; Unknown exception: null; nested exception is java.sql.SQLException: Unknown exception: null at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:89) at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81) at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81) at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:91) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:441) at com.sun.proxy.$Proxy31.selectOne(Unknown Source) at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:160) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:87) at org.apache.ibatis.binding.MapperProxy$PlainMethodInvoker.invoke(MapperProxy.java:145) at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86) at com.sun.proxy.$Proxy45.selectByPrimaryKey(Unknown Source) at com.xx.xxxxTest.xx(xxxx.java:53) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74) at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84) at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75) at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86) at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329) at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306) at org.junit.runners.ParentRunner.run(ParentRunner.java:413) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69) at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55) Caused by: java.sql.SQLException: Unknown exception: null at org.apache.shardingsphere.infra.util.exception.external.sql.ShardingSphereSQLException.toSQLException(ShardingSphereSQLException.java:62) at org.apache.shardingsphere.dialect.SQLExceptionTransformEngine.toSQLException(SQLExceptionTransformEngine.java:62) at org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSpherePreparedStatement.execute(ShardingSpherePreparedStatement.java:416) at com.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:497) at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:64) at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:325) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:89) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:151) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:145) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:76) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:427) ... 40 more Caused by: org.apache.shardingsphere.dialect.exception.syntax.table.NoSuchTableException at org.apache.shardingsphere.infra.connection.validator.ShardingSphereMetaDataValidateUtils.validateTableExist(ShardingSphereMetaDataValidateUtils.java:56) at org.apache.shardingsphere.sharding.route.engine.validator.dml.impl.ShardingSelectStatementValidator.preValidate(ShardingSelectStatementValidator.java:39) at org.apache.shardingsphere.sharding.route.engine.ShardingSQLRouter.lambda$createRouteContext0$0(ShardingSQLRouter.java:67) at java.util.Optional.ifPresent(Optional.java:159) at org.apache.shardingsphere.sharding.route.engine.ShardingSQLRouter.createRouteContext0(ShardingSQLRouter.java:67) at org.apache.shardingsphere.sharding.route.engine.ShardingSQLRouter.createRouteContext(ShardingSQLRouter.java:59) at org.apache.shardingsphere.sharding.route.engine.ShardingSQLRouter.createRouteContext(ShardingSQLRouter.java:47) at org.apache.shardingsphere.infra.route.engine.impl.PartialSQLRouteExecutor.route(PartialSQLRouteExecutor.java:69) at org.apache.shardingsphere.infra.route.engine.SQLRouteEngine.route(SQLRouteEngine.java:57) at org.apache.shardingsphere.infra.connection.kernel.KernelProcessor.route(KernelProcessor.java:60) at org.apache.shardingsphere.infra.connection.kernel.KernelProcessor.generateExecutionContext(KernelProcessor.java:51) at org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSpherePreparedStatement.createExecutionContext(ShardingSpherePreparedStatement.java:545) at org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSpherePreparedStatement.execute(ShardingSpherePreparedStatement.java:405) ... 57 more ` why？and how？ -- This is an automated message from the Apache Git Service. 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