How to Cancel a Refresh Operation of a Materialized View (MV) When it is Scheduled via Job
(Doc ID 806833.1)
Last updated on NOVEMBER 18, 2019
Applies to:Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
Refreshing a materialized view (MV) is controlled by either
- a user of the RDBMS initiating a refresh
- a commit
- a job scheduled to run at pre-determined times
This article deals with the scenario where an MV is refreshed via a scheduled job, similar to the following definition:
Note that the NEXT phrase specifies that the MV should be refreshed automatically every day at 01:00 at night (1 AM).
If this job fails to complete, the job subsystem will reschedule the job to run again.
This may lead to a situation where the system becomes busy always attempting to complete a refresh, specifically if the MV is more complex than the one shown in this (simple) example.
The solution below explains how to stop a job from running and from being rescheduled over and over so that corrective action can be taken.
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