Client and embedded drivers differ on invoking a procedure that returns a
single Dynamic resultSet using CallableStatement.executeQuery()
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Key: DERBY-501
URL: http://issues.apache.org/jira/browse/DERBY-501
Project: Derby
Type: Bug
Components: JDBC
Versions: 10.0.2.1, 10.1.1.0
Environment: All Platforms
Reporter: Satheesh Bandaram
Attachments: Test.java, Test1.java
It is possible to invoke a stored procedure that returns a single dynamic
result using CallableStatement.executeQuery using Derby Client. The embedded
JDBC driver, however, throws an exception like:
Test starting ...url = jdbc:derby:tdb
Exception in thread "main" ERROR X0Y78: Statement.executeQuery() cannot be
called with a statement that returns a row count.
at
org.apache.derby.iapi.error.StandardException.newException(StandardException.java:301)
at
org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:434)
at
org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1142)
at
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(EmbedPreparedStatement.java:1323)
at
org.apache.derby.impl.jdbc.EmbedCallableStatement.executeStatement(EmbedCallableStatement.java:109)
at
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeQuery(EmbedPreparedStatement.java:241)
at Test1.main(Test1.java:26)
I think the embedded driver behavior is incorrect here, though I would double
check that the JDBC spec says.
To reproduce the problem,
1) Create a database called 'tdb' and a table called COMPANY as create table
COMPANY(name char(10));
2) Insert two rows as: insert into COMPANY values 'IBM', 'SUN';
3) register a procedure as:
CREATE PROCEDURE GETALLCOMPANIES() PARAMETER STYLE JAVA LANGUAGE JAVA READS SQL
DATA DYNAMIC RESULT SETS 1 EXTERNAL NAME 'Test.getAllCompanies'
4) Set server classpath
5) Compile two attached java programs, Test and Test1
6) Execute 'java Test1 1' to run as a client program and 'java Test1 2' to run
as an embedded program.
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