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Oracle GoldenGate 12c Implementer's Guide by John P Jeffries

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Exception handling

Oracle GoldenGate 12c now supports Conflict Detection and Resolution (CDR). However, out-of-the-box, GoldenGate takes a catch all approach to exception handling. For example, by default, should any operational failure occur, a Replicat process will ABEND and roll back the transaction to the last known checkpoint. This may not be ideal in a production environment.

The HANDLECOLLISIONS and NOHANDLECOLLISIONS parameters can be used to control whether or not a Replicat process tries to resolve the duplicate record error and the missing record error. The way to determine what error occurred and on which Replicat is to create an exceptions handler.

Exception handling differs from CDR by trapping and reporting Oracle errors suffered ...

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