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Message Posted: Sat, 11 Apr 2009 @ 07:50:26 GMT

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Subj:   Re: Finding frequency of NUSI usage
From:   Madhumitha Das

Thanks for all the replies so far.

As Dave mentioned, does this actually show accesses by queries, or just etl type accesses ... re-collecting stats, etc?

Here is what i am trying to find.

Lets say I have 100 queries and I expect any of these queries to use my NUSIs. If any NUSI is not used, then drop it.

I doubt if DBC.Indices.AccessCount value can be used to drop unused NUSIs.

Do you think populating DBQLExplain table can offer some help here?


Madhu Das -:)

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