How to Conatenating Data Sets in JCL

Concatenating data sets Example 1 //TRANS     DD    DSNAME=MMA1.TRANS.WEEK1,DISP=SHR //          DD    DSNAME=MMA1.TRANS.WEEK2,DISP=SHR //  ...

Concatenating data sets

Example 1

//TRANS    DD   DSNAME=MMA1.TRANS.WEEK1,DISP=SHR

//         DD   DSNAME=MMA1.TRANS.WEEK2,DISP=SHR

//         DD   DSNAME=MMA1.TRANS.WEEK3,DISP=SHR

Allocates three sequential transaction files, processing them one after the other in the sequence in which they’re listed.

Example 2

//SYSLIB   DD   DSNAME=MMA1.COBOL.OBJLIB,DISP=SHR

//         DD   DSNAME=SYS1.COBLIB,DISP=SHR

Allocates two partitioned data sets, searching their directories in the order in which they’re listed.

Example 3

//SYSUT1   DD   DSNAME=MM01.TEXT,DISP=OLD,

//             UNIT=TAPE,VOL=SER=M00023

//         DD   DSNAME=MM01.ACCTG.DATA(ARMAST),DISP=SHR

//         DD   *

  (input data records)

/*

Allocates three files, processing them in the sequence in which they’re listed: first the tape file, then the partitioned data set member, and finally, the instream data set.