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Re: Guide Me

From: Fabien Sanglard
Date: Thursday, October 30, 2003
Time: 5:14:11 am

I don't really understand what is you probleme. Join two tables is more
expensive that select within a set of values....

What is the matter ?
----- Original Message -----
From: Santharam, KarthickKumar
To: 'oracle-list@digitalpoint.com'
Sent: Thursday, October 30, 2003 1:41 PM
Subject: [Oracle] Guide Me


Hi



I am joining two table (one has 91 lacks recs and other has 1 cr 51
lacks recs) with one condition

Say a.x =3Db.x . the cost for this query is 301234 .if I change the
query like



a.x in (1,2,3,4,5...)



and

b.x in (1,2,3,4,5,6,6,7,..)



tha cost reduce to 34



but I cann't give in condition because I have 500000 distinct values



I need your help



Thanks in Advance

karthick



Messages In This Thread:

  • Guide Me by Santharam, KarthickKumar on Oct 30, 2003 at 4:38:40 am
    • Re: Guide Me by Fabien Sanglard on Oct 30, 2003 at 5:14:11 am
    • Re: Guide Me by Santharam, KarthickKumar on Oct 30, 2003 at 5:21:22 am
    • Re: Guide Me by Fabien Sanglard on Oct 30, 2003 at 5:29:42 am
    • Re: Guide Me by Santharam, KarthickKumar on Oct 30, 2003 at 5:41:13 am


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