Performance issues for OCI lookup
Posted: Mon Jan 13, 2003 1:02 pm
Hi,
Datastage version 4.2
Database - Oracle 8.1.7
We need to lookup a big table (about 2 million rows) based on a free-text field - The source could also have upto or more than 2 million rows. Since creating a hashfile for the lookup table is not possible due to the free text field being 2000 chars long, we are using an OCI8 stage lookup.
Obviously,this takes forever - any ideas on how to speed things up?
Any help would be greatly appreciated.
Thanks,
Su
Datastage version 4.2
Database - Oracle 8.1.7
We need to lookup a big table (about 2 million rows) based on a free-text field - The source could also have upto or more than 2 million rows. Since creating a hashfile for the lookup table is not possible due to the free text field being 2000 chars long, we are using an OCI8 stage lookup.
Obviously,this takes forever - any ideas on how to speed things up?
Any help would be greatly appreciated.
Thanks,
Su