Rational Developer for System z
PL/I for Windows, Version 8.0, Programming Guide

Accessing and updating a REGIONAL(1) data set

Once you create a REGIONAL(1) data set, you can open the file that accesses it for SEQUENTIAL INPUT or UPDATE, or for DIRECT INPUT or UPDATE. You can open it for OUTPUT only if the existing data set is to be overwritten. Table 17 shows the statements and options for accessing a regional data set.


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