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Maybe the UNION is trying to resolve duplicates that it doesn't have to??? i.e. requiring a sort
Have you tried UNION ALL
Cheers
Jeff Herrick
On Sat, 30 Nov 2002, Lisa R. Clary wrote:
> I have 3 individual views (average #records=76,000) with the exact same variable names and datatypes. There is another view that is the union of the 3 individual views. If I use a count(*) operation (in sqlplus) on the view that is the union (or the individual view), I run out of temp space e.g. ORA-01652: unable to extend temp segment by 256 in tablespace TEMP (108M temp space, ). If I do subsets, selects, whatever, the views are fairly quick with no problems-- I just can't perform count(*) operations
>
> Any ideas as to parameters in environment/temp space that would eliminate the extent problem relative to the count function?
>
> thanks,
> lc
>
>
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jeff Herrick INET: jherrick_at_igs.net Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Sat Nov 30 2002 - 19:58:47 CST