Some Basic Qs on materialized views
- From: "VIVEK_SHARMA" <VIVEK_SHARMA@xxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 25 Aug 2005 09:53:22 +0530
Folks
1) Is creating constraint a mandatory pre-requisite/requirement for
materialized view to do a refresh of the respective Table?
NOTE Our application does NOT contain any constraints.
2) What Commands/setup is needed to fire an automated refresh at a
certain frequency?
NOTE - We have used 2 Commands DBMS_REFRESH.MAKE to create a refresh
group & DBMS_REFRESH.ADD to add a materialized view the refresh group.
What is being missed / additional commands needed to fire automated
refresh?
3) For automated refresh what amount of time (15 minutes) is usually a
Good frequency for a 600 GB Database?
Thanks indeed
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