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GC28-0631-1
OS/VS Data Management for
Systems System Programmers
VS1 Release 1
VS2 Release 1
Second Edition (September 1972)
This edition replaces the previous edition (numbered GC28-0631-0) and makes that edition
obsolete.
This edition applies both to Release 1 of OS/VS1 and to Release 1 of OS/VS2, and to all
~~ub~;,,'quent releases of either system unless otherwise indicated in new editions or technical
lle\"Isletters.
Significant technical and editorial changes made in this edition are outlined in "Summary of
~lajor Changes" following the list of figures. This summary is followed by a brief discussion
of differences between OS/VS Data Management for System Programmers and OS/MFT
and OS/MVT Data Management for System Programmers. Each technical change is marked
by a vertical line to the left of the change.
Information in this publication is subject to significant change. Any such changes will be
published in new editions or technical newsletters. Before using the publication, consult the
latest IBM SRL Newsletter, GN20-0360, that amends IBM System/360 and System/3 70
Bibliography, GA22-6822, to learn which editions and technical newsletters are applicable
and current.
Requests for copies of IBM publications should be made to the IBM branch office that
serves you.
Forms for readers' comments are provided at the back of this publication. If the forms have
been removed, comments may be addressed to IBM Corporation, Programming Publications,
Department D78, Monterey and Cottle Roads, San Jose, California 95114. All comments
become the property of IBM.