Enhancing performance of the initialization function

Using the initialization function is not necessary when using the CHANGE or RELOAD commands.

If the VSAM cluster is empty during execution of the CHANGE or RELOAD command, the initialization function is performed automatically. If the VSAM cluster is not empty, these functions assume that any existing data is to be retained.

For information about CHANGE command performance enhancements, see Enhancing performance of the CHANGE function. For information about RELOAD command performance enhancements, see Enhancing performance of the RELOAD function.

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