Eval-Corr valorizzare parzialmente una DS


Veniamo all’operation code Eval-Corr:

Il manuale IBM dice:

The EVAL-CORR operation assigns data and null-indicators from the corresponding subfields of the source data structure to the subfields of the target data structure. The subfields that are assigned are the subfields that have the same name and compatible data type in both data structures. For example, if data structure DS1 has character subfields A, B, and C, and data structure DS2 has character subfields B, C, and D, statement


will assign data from subfields DS2.B and DS2.C to DS1.B and DS1.C

All About .. CL

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