For Service Catalog, please add a GUI function to call Archive/Purge parameters. Doing this via a Stored Procedure is a functional work around, but other CA Products have Archiving/Purge built-in to the GUI. With a high number of Requests comes an extremely large usm_system_change_detail. Also, please analyze current index's on usm tables affected by archive/purge. We have had to add 4 indexes that make the procedure 1000% faster.