Queries in Format Control

You can use Format Control to specify the conditions that trigger a query to run. It is most efficient if you only run queries when they are needed. For example, if you plan to use query results during the addition or update of a record, then set the Format Control conditions so that the query only during add or update operations. The same suggestion applies to any custom Format Control calculations and subroutines you use. Verify that you need the custom query and that it runs only when it is needed. By restricting the conditions under which a Format Control query runs you minimize unnecessary calls to the RDBMS and keep system resources free for other operations.