Memorex LOCK - VERSION 2-24 Informations techniques Page 219

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DD Statement Overview
User Reference
Connectivity Systems, Inc.—Copyright © 2006
Use Pursuant to Company Instructions
6-3
If you use a DD statement for a DTF that your program defines as a unit
record DTF (DTFCD or DTFPR), the ddname is the SYSnnn, where
nnn is the number specified in that DTF. A unit record DTF is generated
for COBOL programs when the SELECT statement contains an
assignment name that specifies the class UR.
Note:Note:
Do not use ddname in continuation statements or concatenation
statements.
Some DTF names have special meanings and are invalid for DD
statements. See “
DD Statement Names” in this chapter for additional
information.
parameter-expressions Can follow in any order, except where
noted otherwise. A
parameter-expression consists
of a parameter and its value(s) joined
by an equal sign (=). These expressions
must be separated from each other
using commas or blank spaces.
Numeric values are automatically
zero-filled on the left, if required,
eliminating the need to use leading
zeros.
Most DD parameters are
MVS-compatible. However, some
parameters are not compatible for:
Tape and disk datasets (including
GDIUR datasets)
Standard VSE system datasets
SYSIPT data
Dummy datasets
Not all MVS DD parameters are
supported by the BIM-EPIC DD
statement. BIM-EPIC ignores
unsupported and unrecognized
parameters and subparameters.
Supported parameters are discussed
later in this guide.
Parameter Definition
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