RE: Slow performance/response

Sounds like you should be able to read the whole table in the original
30 minutes.  How about a query plan=3F

Allan

-----Original Message-----
=46rom: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Leroy Kemnitz
Sent: Tuesday, June 29, 2004 1:51 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Slow performance/response


All -

I have not done tuning a great deal so bear with me.  I currently have a

table that consists of 10 million rows - warehouse.  The largest table I

have.  A few months ago a query took around 30 minutes to run against=20
this table.  This was acceptable.  Now the query takes almost 5 hours!!!

   The db is 9.2.0.4 running on aix 5.2.  I have stats that I ran on the

db during the query run and it shows the db working but not maxed out.=20
The tablespace is at 75% used, not seeing waits.  There is alot of disk=20
reads.  No disk sorts.  I am seeing a high 'Physical Blks per Read %'=20
but I am attrbiuting that to the datafiles being on one disk.  I do plan

on rearranging them after the query finishes and hope this helps.

I am looking for other ideas of what could be wrong with the table or=20
places to look.  I will continue to search for ideas at metalink and in=20
the books.


Lee


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