DISP field for temporary dataset

Prabha · New User Joined: 05 Dec 2005 Posts: 79

When using temporary datasets in JCL, what should be the disposition.
CAn we give new or shr or old??

dbzTHEdinosauer · Posted: Thu Jan 24, 2008 5:16 pm

expat · Posted: Thu Jan 24, 2008 5:23 pm

Yes, you can use any of those, and as Dick has added, PASS

What problems are you encountering here ?

Prabha · New User Joined: 05 Dec 2005 Posts: 79

Some of our project JCL's are using disp=(new).. So let me know the difference between new and pass.

murmohk1 · Posted: Thu Jan 24, 2008 6:36 pm

Prabha,

Go thru the JCL material available in the 'downloads' section of the forum. New & Pass are two diff values.

dick scherrer · Posted: Thu Jan 24, 2008 11:02 pm

Hello,

Use NEW for the first positional parameter of DISP.

Use PASS for the second potitional parameter of DISP.

And i prefer DELETE for the third positional DISP parameter when creating a temporary dataset.

Bitneuker · Posted: Sat Jan 26, 2008 1:29 am

I'm a fan of business requirements

What about disp=mod?

dick scherrer · Posted: Sat Jan 26, 2008 1:58 am

Hello,

For my $.02, there are a couple of good places to use MOD.

One is to append data. Another is to ensure a "housekeeping" step does not fail.

I've seen a few situations where unexpected/invalid results happened due to unintentionally appending to an existing file (one that was not supposed to exist).

Again, not a rule, just a preference. . .