Descendant Periodic Groups and Multi-Value Fields

The Adapter for Adabas must retrieve a count of the number of occurrences before attempting to retrieve a periodic group (PE) or multi-value (MU) field. This retrieval is accomplished by taking the appropriate Adabas counter field (indicated by the OCCURS attribute on the segment declaration in the Master File) and placing its ALIAS (the two-character Adabas name of the PE or MU appended with the letter C) in the Format buffer of the call for the parent record fields.

Adabas returns to this counter field the total number of occurrences that exist for the PE or MU.

The adapter retrieves the descendant data in one of the following ways:


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