Which Library will be searched first in the steplib/joblib

amajhi · New User Joined: 21 Jul 2006 Posts: 18 Location: Pune

Hi All

Can anyone explain on what basis libraries mentioned in the STEPLIB/JOBLIB are searched ?

For example.

//STEPLIB DD DSN=LIBRARY1,DISP=SHR
// DD DSN=LIBRARY2,DISP=SHR
.
.
.
// DD DSN=LIBRARY10,DISP=SHR

Then from these 10 libraries which one will be searched first.

enrico-sorichetti · Posted: Mon Jul 28, 2008 11:20 am

the manuals will explain better,

but, quick and dirty,
in any DD concatenation, the datasets/libraries
will be processed/searched in the order they are specified

but, just curious, why do You ask?
are You doubting/wondering about some kind of random search

Aaru · Posted: Mon Jul 28, 2008 12:08 pm

amajhi,

If both JOBLIB and STEPLIB are mentioned, then STEPLIB overrides the JOBLIB and the libraries mentioned in the STEPLIB would be checked for that step.

It depends on the order in which they are mentioned in the JCL.

Terry Heinze · Posted: Mon Jul 28, 2008 9:10 pm

Not only will STEPLIB data sets override JOBLIB ones, but they actually replace them, but you'll still get the system defined link list libraries. This is important to remember if you define a STEPLIB but still need one or more of the libraries defined in the JOBLIB statement.

Anuj Dhawan · Posted: Tue Jul 29, 2008 12:29 pm

Hi,

And, these things has been discussed many times before, here is one such link-

ibmmainframes.com/viewtopic.php?t=16725&highlight=steplib

Might be you are intrested in these links..

JCLLIB Definition: publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IEA2B660/19.0?DT=20050713232151

JCLLIB Examples: publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IEA2B660/19.1.8?SHELF=&DT=20050713232151&CASE=

STEPLIB Definition: publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IEA2B660/13.5?DT=20050713232151

STEPLIB Examples: publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IEA2B660/13.5.6?SHELF=&DT=20050713232151&CASE=