I have some PL/SQL code that has been running for several years and just started giving me problems. It inserts a record from one database to another going across a dblink.

It recently started giving me this error:

ORA-00001: unique constraint (SIEBEL.S_EVT_ACT_M9) violated

The problem is that SIEBEL.S_EVT_ACT_M9 is an index, but it is NOT a unique index.

When I had the problem a week ago I suspected a corrupt index, so I dropped and recreated the index. This fixed the problem. However the problem came back this week.

So now I need to get to the root cause and find out what is happening to this index.

Any help would be appreciated.

Thank you.
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Paul LaBarbera
Oracle DBA Manager, AT&T, Morristown, NJ