RE: is my table analyzed with compute/estimate

From: Stephane Faroult <sfaroult_at_oriolecorp.com>
Date: Wed, 29 May 2002 02:13:25 -0800
Message-ID: <F001.0046DC04.20020529021325@fatcity.com>

('binary' encoding is not supported, stored as-is)

>Hello All,
>
>Can somebody help me on this how to know whether my
>
>table was analyzed last time with COMPUTE /
>ESTIMATE.
>
>what I guess is , if the num_rows (dba_tables) are
>equivalent to count of the rows in my table, I
>guess
>it was analyzed with compute statistics.
>
>I think it is not accurate to find it.
>
>Can somebody through somelight on this how to know
>that.
>
>Regards,
>Srinivas
>

I believe (this is an estimate :-)) that the dictionary tables which hold statistics also hold some information about the percentage of the data which was used - I presume that 'COMPUTE' would store NULL or 100. But this information may not be present in all Oracle versions.

Regards,

Stephane Faroult
Oriole

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Author: Stephane Faroul
  INET: sfaroult_at_oriolecorp.com

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Received on Wed May 29 2002 - 05:13:25 CDT