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From "Kevin Sutter (JIRA)" <>
Subject [jira] Assigned: (OPENJPA-702) MappingTool fails requires appropriate DESCSTAT parm value on DB2 for z/OS
Date Mon, 25 Aug 2008 20:03:44 GMT


Kevin Sutter reassigned OPENJPA-702:

    Assignee: Jeremy Bauer

> MappingTool fails requires appropriate DESCSTAT parm value on DB2 for z/OS
> --------------------------------------------------------------------------
>                 Key: OPENJPA-702
>                 URL:
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: docs
>    Affects Versions: 1.3.0
>         Environment: OpenJPA trunk, DB2 for z/OS V8, IBM JCC type 4 JDBC driver.
>            Reporter: Jeremy Bauer
>            Assignee: Jeremy Bauer
>            Priority: Minor
>         Attachments: OPENJPA-702.patch
> When running with the IBM JCC driver to a DB2 on z/OS system the mapping tool may fail
with the stack trace below if the DB2 DESCSTAT subsystem parameter is not set to 'YES'.  This
parameter controls whether column names are returned in a JDBC metadata query.  Specifically,
the mapping tool uses the JDBC-spec defined column names to query column metadata and that
query will fail if DESCSTAT is set to 'NO'.  By default DB2 on z/OS version 8 and later set
the DESCSTAT parameter to 'YES'.  However, if it gets set to 'NO' , explicitly or possibly
via a DB migration, the mapping tool will fail.
> org.apache.openjpa.persistence.PersistenceException: [ibm]
>  [db2][jcc][10150][10300] Invalid parameter: Unknown column name TABLE_SCHEM.
>  	at org.apache.openjpa.jdbc.meta.MappingTool.record(
>  	at org.apache.openjpa.jdbc.meta.MappingTool.record(
>  	at org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.synchronizeMappings(JDBCBrokerF
>  	at org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.newBrokerImpl(JDBCBrokerFactory
> .java:119)
>  	at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.
> java:189)
>  	at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFact
>  	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(Enti
>  	at  ...
> I will post a patch shortly that includes a documentation update for the DB2 known issues
section of the doc.

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