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From "Kevin Sutter (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-67) Bug with creating a named Sequence Generator for DB2
Date Tue, 24 Oct 2006 18:40:16 GMT
Bug with creating a named Sequence Generator for DB2
----------------------------------------------------

                 Key: OPENJPA-67
                 URL: http://issues.apache.org/jira/browse/OPENJPA-67
             Project: OpenJPA
          Issue Type: Bug
          Components: jdbc
         Environment: DB2
            Reporter: Kevin Sutter
         Assigned To: Kevin Sutter


We discovered that the usage of a named Sequence Generator with DB2 doesn't work as expected:

@Entity
@Table(name="ORDEREJB")
public class OrderEntity implements Serializable {
	@Id
	@SequenceGenerator(name="OrderSeq", sequenceName="O_SEQ")
	@GeneratedValue(strategy=GenerationType.SEQUENCE, generator="OrderSeq")
	private int orderid;
...

This results in the following error:

2188  TRACE  [main] openjpa.jdbc.SQL - <t 11372121, conn 27778511> [985 ms] executing
prepstmnt 3860801 SELECT NEXTVAL FOR O_SEQ
2188  TRACE  [main] openjpa.jdbc.JDBC - <t 11372121, conn 27778511> [0 ms] commit
2203  TRACE  [main] openjpa.jdbc.JDBC - <t 11372121, conn 27778511> [15 ms] close
<0|false|0.9.0-incubating-SNAPSHOT> org.apache.openjpa.persistence.PersistenceException:
An unexpected token "END-OF-STATEMENT" was found following "CT NEXTVAL FOR O_SEQ".  Expected
tokens may include:  "<table_expr>". {prepstmnt 3860801 SELECT NEXTVAL FOR O_SEQ} [code=-104,
state=42601]
	at org.apache.openjpa.jdbc.sql.DBDictionary.newStoreException(DBDictionary.java:3713)
	at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:94)
	at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:80)
	at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:56)

We have discovered that the incorrect SQL statement is specified in the DB2Dictionary.  Instead
of this:

        nextSequenceQuery = "SELECT NEXT VALUE FOR{0}";

We need this:

        nextSequenceQuery = "VALUES NEXTVAL FOR {0}";

I just wanted to document this issue instead of just fixing it so that the problem can be
searchable (we've had a few people run into this when using OpenJPA with DB2).

Thanks,
Kevin

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