RE: ORACLE TUNING

Yes they both are, only difference being the amount of data in Prod and DEV databases for this query. Prod has more.

Srini

-----Original Message-----
Sent: Tuesday, March 19, 2002 9:43 PM
To: Multiple recipients of list ORACLE-L

Are the tables/indexes analyzed the same way, if you use CBO?

• Kirti

-----Original Message-----
Sent: Tuesday, March 19, 2002 4:14 PM
To: Multiple recipients of list ORACLE-L

Thank you for the response. The indexes on both sides are regular non-unique indexes. Any other possible reasons..
Srini

-----Original Message-----
Sent: Tuesday, March 19, 2002 1:34 PM
To: Multiple recipients of list ORACLE-L

SRAJENDRAN_at_nlfs.com wrote:
>
> Hello:
>
> I have an identical query that has similar explain plan on both Prod and
Dev
> environment, only difference being that certain indexes are performing
> unique scan on Prod and Range scan on Dev.
> Can you cast some light on how this can be matched and under what
conditions
> this discrepancy might occur.
>
> Thank you,
>
> Srini
>

The index being declared UNIQUE in one case and not in the other seems to me the most likely reason.

-- 
Regards,

Stephane Faroult
Oriole Ltd
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