Hi,
I'm joining a table with 32000 rows with a very large table (3 Gb),
resulting in 97000 records. When I execute the query without hints, it uses
a full table scan and a hash join, and returns a result in 4 minutes. When I
use a hint forcing a nested loop (and part of an index (range scan)), the
query takes 14 minutes to complete. The question is: why does a join between
an inner table with 32000 records and a large table using a range scan on an
index take so long ? I would expect Oracle to give a result within seconds,
a few minutes tops !
The table has very few chained rows and I've rebuilt the index recently.
RDBMS is 8.1.6. Index and data are divided over many different disks.
Any suggestions ? Except kicking the server ?
Remco
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Daemen, Remco
INET: [EMAIL PROTECTED]
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
San Diego, California -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (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).
