SQLCODE -904 unsuccessful execution caused by an unavailable resource. Unavailable resource. Someone is locking the data you need you may choose to terminate the program.
SQL code of -904 is unsucessful execution of a DB2 query due to an unavailable resource. The name, type of resource unavailable and the reason is also provided by DB2.
You can check the name of the resource and the reason for its unavailability and if the reason is out of your control, check with system administrator or try to issue the query at a later point in time.
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