NCL VSAM Techniques › Initialization and ACB Open Processing › Automatic Verification and Loading › For Key-Sequenced Data Sets (KSDS)

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For Key-Sequenced Data Sets (KSDS)

For a KSDS, a single record with a key of all X'00' is inserted into the data set. If the load is successful, the data set is closed and re-opened in update mode and the initial load record deleted. If the load fails, the data set is classified as unusable and is blocked from further processing. The SHOW UDB command can be used at any time to determine the status of a UDB and if necessary to obtain any error code set during open processing.

The loading of alternate indices by your product is not supported. This must be performed using the IDCAMS BLDINDEX function. Once built, these indices are maintained correctly.