!! Please do not post Off Topic to this List !!
I have analyzed them today via:
analyze table ... estimate statistics;
analyze table ... estimate statistics for all indexed
columns;
No data were added/modified agter that
--- "Nicoll, Iain (Calanais)"
<[EMAIL PROTECTED]> wrote:
> !! Please do not post Off Topic to this List !!
>
> Have they been analyzed recently? as if you were
> using histograms then if
> the last two months were added after your last
> analyze it would think they
> were fairly rare.
>
> Cheers
>
> Iain Nicoll
>
> -----Original Message-----
> Sent: 13 September 2001 19:11
> To: Multiple recipients of list ORACLE-L
>
>
> !! Please do not post Off Topic to this List !!
>
> Hi all:
>
>
> I have a query, which behaves differently depending
> on the input data (month/year). I have more than
> 15month worth of data in the database. The query
> is completed under 1 minute for the first 13 month,
> but for the last two months it just doesn't finish.
> I
> have cancelled it after 36 minutes. The explain
> plans
> are
> differ in that the "quick" query uses more hash
> jonts,
> while "slow" one utilizes more nested loops. All the
> tables are analyzed. This must have something to
> do with the data distribution, but what? Can anyone
> shed some light onto that?
>
> tia
>
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