I had a complaint that a job was taking nearly 3 hours to run at night in certain circumstances. In fact I'd added an SQL request on a PF without realizing the consequences. The job already took a long time before I added it, maybe half as long.
Anyway, I used the iNav index advisor to create the necessary index. Now, the job runs in 5 minutes! I am wondering why it is so much faster than before I added the lengthy SQL request?
I can't find any other SQL references in the job. RPG programs are using the PF with a CHAIN operation. I have replaced the index I created with iNav with an LF and it runs just as fast. The same PF with about 2 million records now has 7 LF.
Also, as my new LF is only currently used in my SQL request, there are no references it. How should I prevent someone from cleaning up and removing it ?
This mailing list archive is Copyright 1997-2020 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact