Explanation: Connection to DB2 has failed because of an unexpected internal error, identified by the 'reason-code'.
System action: The statement cannot be executed. The connection to DB2 is not established.
Programmer response: Look up the abend 'reason-code' in Part 3, “DB2 codes” for further information. The requested 'function-code' and 'return-code' may provide additional information. Any attempts to issue SQL statements following the SQLCODE -924 will cause unpredictable results. SQLSTATE: 58006
the above is from Vsn 8, but is basically valid for 6 & 7.