DB2 Update Query

What are the possible situations where DB2 server FORCES to close the applications connected to it?

Possibile situations where DB server forces to close the applications connected to it? Some of the situations can be : DB2 restart, DB2 stop, DB2 suspend. What else situations in DB2 server forces to close the applications connected to it? Your help is greatly appreciated !

DB2 update query giving error STRING REPRESENTATION OF DATETIME VALUE HAS INVALID SYNTAX.

The following sql query in DB2 is giving the exception. What can be the correct query for this in DB2? SQLQuery=update EMP set validityenddate='01-JAN-07' WHERE username='XYZ' Exception: msg=java.sql.SQLException: [DataDirect][ODBC DB2 Wire Protocol driver][UDB DB2 for Windows, UNIX, and...