Sample EXEC Statement - mfx

Sample EXEC Statement - mfx - 3.1

Syncsort™ MFX Programmers Guide

Product type

Software

Portfolio

Integrate

Product family

Syncsort™ Software

Product

Syncsort™ MFX > MFX

Version

3.1

Language

English

Content type

Programmer’s Guide

Product name

Syncsort™ MFX

Title

Syncsort™ MFX Programmers Guide

2024

First publish date

2010

Last updated

2024-11-06

Published on

2024-11-06T17:38:26.716054

Figure 1. MAXSORT EXEC Statement

DD Statements

MAXSORT’s DD statement requirements are summarized in the following table. As many as three additional types of DD statements may be needed. Note that SORTWK files must be allocated only to disk devices.

Table 1. MAXSORT DD Statements
//$ORTPARM	DD	Used to override PARM or control statement information.
//SYSIN	DD	Control statement data set. Used unless control statements are supplied via an invoking program parameter list.
//SYSOUT	DD	Message data set. Required unless all messages are routed to console.
//SORTWKnn	DD	Disk work area definition. Required unless DYNALLOC is specified or MAXSORT is restarted at a MERGE breakpoint.
//SORTIN	DD	SORT input data set. Required unless there is an E15. Ignored if the invoking program supplies an inline E15 exit routine; optional if the MODS statement activates an E15 exit routine.
//SORTOUT	DD	Output data set. Required unless there is an E35. Ignored if the invoking program supplies an inline E35 exit routine; optional if the MODS statement activates an E35 exit routine.
//SORTXDUP	DD	Output data set for records deleted by DUPKEYS. Required if XDUP parameter used.
//SORTXSUM	DD	Output data set for records deleted by SUM. Required if XSUM parameter used.
//SORTBKPT	DD	Breakpoint data set. Must be DASD. Required.
//SORTOU00	DD	Required if intermediate output is on tape.
//SORTOUnn	DD	Required if intermediate output is on disk or if intermediate output is on tape and DYNATAPE is not specified.
//SORTCKPT	DD	Checkpoint data set. Required if Checkpoint-Restart is used.
//SORTMODS //SYSLIN //SYSLMOD //SYSPRINT	DD DD DD DD	Required if user exits are in SYSIN and if user exits are to be linkage-edited at execution time.
//ddname	DD	Required for exits unless the exit is inline in LINKLIB/JOBLIB/STEPLIB or in SYSIN.

When the RELEASE=ON parameter is active (either via specification or by default) at the conclusion of the sort portion of a MAXSORT, most of the allocated SORTWK space is free (however, in the case of invoked sorts or SORTWKs defined as OLD, the data set is returned to the size allocated at MAXSORT initiation rather than the minimum size possible).

The SORTBKPT, SORTOU00, SORTOUnn and SORTCKPT DD statements are discussed below. Refer to JCL and Sample JCL/Control Statement Streams for a discussion of the other DD statements, which are specified for MAXSORT just as they would be specified for Disk Sort.