Comparing access plans and SQL statement execution costs for DB2 for z/OS

Compare access plans to determine how SQL statement performance on a DB2 for z/OS subsystem is affected by an application change (such as adding a SQL statement to a program and rebinding the package), by an environment change (such as adding an index), by release migration, or by running RUNSTATS. You can also compare access plans to validate the results of a tuning activity.

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