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Locking occurring when performing SELECT with ORDER BY [message #61994] Wed, 16 June 2004 13:53 Go to next message
Matthew Sedares
Messages: 2
Registered: June 2004
Junior Member
Hello,

On two schemas on a particular 8.1.7 DB, my users are getting locked out whenever they run a select statement with an "order by" clause.� This only occurs on two schemas on the database, and there are a total of 8 schemas.�

I have tried recreating indexes, but that did not work.� To verify, I am failing on�ALL statements with the ORDER BY statement, not ust the ones�which use an index.� In addition I tried reanalyzing statictics on all�tables and indexes�for the schemas with the issue.� Does anybod have any idea what could be causing this and wehat could be done to repaiur this?

Many, many thanks, to anyone that could help.

Matt

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Follow-up in SQL forum. (n/t) [message #61996 is a reply to message #61994] Wed, 16 June 2004 21:10 Go to previous messageGo to next message
Maaher
Messages: 7065
Registered: December 2001
Senior Member
n/t

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Re: Locking occurring when performing SELECT with ORDER BY [message #62063 is a reply to message #61994] Wed, 23 June 2004 03:52 Go to previous message
holmespp
Messages: 1
Registered: June 2004
Junior Member
Are you certain they're locked?

It seems to me more likely that the order by is forcing a sort that needs more space than the memory you've got allocated by the SORT_AREA_SIZE parameter & is therefore using disk, drastically slowing the whole thing

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