Understanding Summarizations, Deletions and Purges

To increase disk space, you can summarize, delete, or purge information from the system.

Programs that summarize records create a single record to replace numerous detail records. Programs that delete records remove information from the system. And programs that purge information do one of these tasks, depending on the program:

• Copy records to a purge table.

  The system marks the original records as purged and then deletes them from the system.

• Remove information from the system.