doubt regarding DDNAME parameter in proc

srimsc_ibmmainframes · New User Joined: 17 Feb 2004 Posts: 19 Location: pune

Plz let me know what is the use of the DDNAME parameter in cataloged procedures?
if possible plz explain me with a small example

narena · New User Joined: 16 Mar 2005 Posts: 18

Hi Reddy,

The DDNAME refers to the file name in cobol program of SELECT statment.

mmwife · Super Moderator Joined: 30 May 2003 Posts: 1592

Hi REDDY,

The traditional use of DDNAME= in a cat/proc is to access in-stream data from a cat/proc, since the data itself is not permitted in the proc.

So, you'd do something like:

//s1 exec mycatprc
//instrm dd *
a
b
c
/*

In your cat/proc you'd code:
//ps1 exec pgm=yrpgm
//dd1 dd dns=............
//sysin dd ddname=instrm

This allows the data a, b, c to be read from a cat/proc.

HTH