Deleting data from DBQLogTbl? - response (5) by VandeBergB

Purging the dbql tables to history is a very common task.  How often you run the script and how much history you retain is generally dependent upon a combination of how busy your system is and what level of logging you've enabled.
If you're going to engage Teradata in a PDCR engagement, they like to have a good sample of dbql data at their fingertips, at least four weeks.
Some shops keep a rolling 13 months worth of data.
It's generally up to the dba's to schedule or customize the basic script, which you should be able to find, along with the necessary ddl t the following link on this site: http://d289lrf5tw1zls.cloudfront.net/database/dbql-scripts/TD13_0_and_TD13_10_DBQL_logging_and_maintenance.pdf