At times, you may want to remove a SYSMOD that has been applied to the target libraries. For example, perhaps you installed a fix for a problem and got unexpected results. If you have not yet accepted the SYSMOD into the distribution libraries, you can use the RESTORE command to remove it from the target libraries.

The RESTORE command replaces the affected elements in the target libraries with the unchanged versions from the distribution libraries. (As a result, once you have accepted a SYSMOD into the distribution libraries, you cannot use RESTORE to remove it from the target libraries.)