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Home -> Community -> Usenet -> c.d.o.server -> Re: RAC for Reporting...!
Running DBMS_MVIEW.EXPLAIN_REWRITE for my Query and Materialised View gives me:
ERROR at line 1:
ORA-00936: missing expression ORA-06512: at "SYS.DBMS_XRWMV", line 0 ORA-06512: at "SYS.DBMS_SNAPSHOT", line 1475 ORA-06512: at line 7
The only hit on Metalink refers to patching to 9.2.0.4.... Great...!
Matt
> [...]
>
> Yes, the overhead of maintaining the MV's will still be there, just as
> it would be in the primary database.
>
> But the potential benefit would be in having a separate instance, with
> different tuning parameters and different hardware to run it, so that
> reporting queries don't impact transaction performance in the primary
> database. If you can build the MV's directly in your primary and run
> the reporting there, then you're right, there's no point.
>
> --Mark Bole
Received on Tue May 11 2004 - 03:01:32 CDT
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