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

Defining files for workstation VSAM data sets

You define a workstation VSAM sequential data set by using a file declaration with the following attributes:

  dcl Filename file record
               input | output | update
               sequential
               buffered
               [keyed]
               environment(options);

You define a workstation VSAM keyed data set by using a file declaration with the following attributes:

  dcl Filename file record
               input | output | update
               sequential | direct
               buffered | unbuffered
               [keyed]
               environment(options);

You define a workstation VSAM direct data set by using a file declaration with the following attributes:

  dcl Filename file record
               input | output | update
               direct | sequential
               unbuffered | buffered
               [keyed]
               environment(options);

The file attributes are described in the PL/I Language Reference for this product. Options of the ENVIRONMENT attribute are discussed below.

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