Database DataWarehousing (MOSC)

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Materailized Views

edited Mar 30, 2012 5:18AM in Database DataWarehousing (MOSC) 2 commentsAnswered
 
Team, 

10.2.0.4
Linux AS4.

I have got below queries on Mviews. Please help me out over this ?

1) In Which cases, MV Logs wil be cleared ? ( fast/force/complete refresh)

2) In COMPLETE refresh, is it ture that we don't need MV logs ?

3)  My MV jobs are running for every 5 mins from DBA_JOBS. What happen if the MV is unable to refresh in 5 mins?

4) We have data replication from OLTP to OLAP env through MVs.  All Mviews are refreshing fine without any failures. But we have huge difference in record count b/w these table when compared OLTP -- > OLAP.

Is this okay as long as mview is refreshing or do we  need to make it sync with primary table in OLAP.

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