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  Oracle Tips by Burleson

Oracle Streams
Chapter 7 -
Monitoring and Troubleshooting Oracle Streams

Capture to Dequeue Latency for an Event


Even though the above specified views are both dependable, the following differences between these two queries exist:

The Apply process should be enabled when the query is run on the v$streams_apply_coordinator view.  The Apply process can be either enabled or disabled when the query is run on the dba_apply_progress view.

The query on the v$streams_apply_coordinator view may show the latency for a more recent transaction than the query on the dba_apply_progress view.

Display Error Transaction Details

Even though a query of the dba_apply_error view provides the list of Apply errors, the event itself needs to be queried in order to fully understand the details of the event and error details. Without the full details, it may not possible to pinpoint the problem.

This section contains the PL/SQL code for three procedures that help inquire about the event details.  These procedures are not mutually exclusive.  They compliment each other in the search for event details.

The above text is an excerpt from:

Oracle Streams
High Speed Replication and Data Sharing

ISBN 0-9745993-5-2

by Madhu Tumma

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