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Materilized View Dropping vs.Truncating.

edited Jan 14, 2010 1:19AM in Database DataWarehousing (MOSC) 8 commentsAnswered ✓
I have a script that drops a materialized view then creates the view. I've notice that the lots of logging

occurs during this job.  To reduce the amount of logging, I have added the NOLOGGING clause to the

creation of the materialized view.     So I started to think, what is better:

  • A)  Drop the materialized view (without a purge)  the create the table or...
  • Truncate the materialized view then insert to the materialized view.

What is the least contentious operation?  What operations would cause the least about of log switching?

Thanks.

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