Setting the Number of Temporary Tables
Normally you may leave the number of temporary tables set to the default established at installation. You may need to change this setting for optimal performance, depending on various aspects of your implementation, including account transaction volumes, benchmark numbers for the current hardware and database platform, as well as your service-level requirements. Use the following procedure if you need to adjust the number of temporary tables to improve performance in your implementation.
To set the number of temporary tables:
Set the Temp Table Instances (Total) and Temp Table Instances (Online) fields to the desired settings.
Note: Temp Table Instances (Total) should always be set to the same values as Temp Table Instances (Online), unless you have been instructed otherwise in the application documentation.
Scroll to the bottom of the page and select the Save icon to save the newly edited PeopleTools options.
Note: The total number of instance generated consists of the allocations specified on the PeopleTools Options panel plus the allocations specified on each individual Application Engine program. (To modify these allocations, open an Application Engine program in Application Designer, open the Properties dialog box for the object, and click the Temporary Tables tab.)
Recreate all temp tables in your database.
See PeopleTools 8.53 Installation for DB2 for z/OS: “Creating a Database”.
Warning! If you change the number of online temporary table instances as described above, it is critical that you recreate all temporary tables in your database, particularly if you are increasing the number of instances. The parameter above is global to all temporary tables and is used by all on-line processes to determine the number of temporary table instances that should be available to a given process. If you don't recreate all temporary tables, a process may try to use an instance that has not been created on the database, and will subsequently fail.