Solved. It was a hash join with the smaller table first but it pulled the whole 1M records for this.
There was a: where local_table.branch = 1 in the query. I changed it into: where remote_table.branch = 1 (there is an index on remote_table.branch) and it came down to 2 seconds. Thanks all. Yechiel Adar Mehish ----- Original Message ----- To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Wednesday, December 03, 2003 9:49 PM > I did a select like: > > select name from local_table , remote_table > where local_table.account = remote_table.account. > > Remote table is a view with dblink. > > I select about 100 records out of about 1M records at the remote db. > > I found out that oracle does full table scan at the remote site. > > I will welcome ideas how to make oracle use the index on the remote side. > > Yechiel Adar > Mehish > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.net > -- > Author: Yechiel Adar > INET: [EMAIL PROTECTED] > > 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: [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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Yechiel Adar INET: [EMAIL PROTECTED] 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: [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).
