As needed, a Delta rowset can be deleted using the AUTOCOLL OPTION=DELTADEL. In some cases, you may want to rebuild the Summary, AVGPERF and Baseline Delta rowsets. In these cases, you would delete the Delta Summary, AVGPERF, or Baseline rowsets before re executing the functions to rebuild the Delta rowsets.
DELTADEL provides various selection parameters to limit which rowsets are deleted. Before running DELTADEL, you, should run a DELTARPT using the same selection criteria to verify that only the unneeded rowsets are deleted. As a precaution you may also decide to back up the Delta database (1020) before running the delete.
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