Answer / nans

In the catalogued PROC, the 3rd dataset can be overridden
like below.
ORIGINAL CODE IN CATALOGUED PROC:
*********************************
//S01 DD DSN=A.B.C.D1,DISP=SHR
// DD DSN=A.B.C.D2,DISP=SHR
// DD DSN=A.B.C.D3,DISP=SHR
// DD DSN=A.B.C.D4,DISP=SHR
// DD DSN=A.B.C.D5,DISP=SHR
//
...

OVERRIDDING 3RD CONCATENATED DATASET IN CATALOGUED PROC:
******************************
//PRCN.S01 DD
// DD
// DD DSN=A3.B3.C3.D3,DISP=SHR
// DD
// DD
//
...

Answer / raghu

//S01 DD DSN=A.B.C.D1,DISP=SHR
DD DSN=A.B.C.D2,DISP=SHR
DD DSN=A.B.C.D3,DISP=SHR
DD DSN=A.B.C.D4,DISP=SHR
DD DSN=A.B.C.D5,DISP=SHR
...

OVERRIDDING 3RD CONCATENATED DATASET IN CATALOGUED PROC:
******************************
//PRCN.S01 DD
DD
DD DSN=A3.B3.C3.D3,DISP=SHR
DD
DD

Answer / sivaram

by using symbolic parameters u can override the 3rd DSN.

Answer / vaneesh khurana

Calling catalog proc
Pass the symbolic parameter name to C while executing
proc(CATPROC)

//STEP1 EXEC CATPROC,C=NAME2
------------------------------------

Catlaog Proc

Here third dataset name which was "THIRD.FILENAME" earlier
will get overridden with "NAME2.FILENAME"

//CATPROC PROC A=FIRST,B=SECOND,C=THIRD,D=FOURTH,E=FIFTH

//STEP2 EXEC PGM=PGM1

//DFILES DD DSN=&A..FILENAME
DD DSN=&B..FILENAME
DD DSN=&C..FILENAME
DD DSN=&D..FILENAME
DD DSN=&E..FILENAME

Answer / vinay sonar

Use symbolic parameter.
Ir use following syntax

//STEP1.DD3 DD dsn='dataset name'

where STEP1 is step name and DD3 is dd statment name is
procedure

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