Steps when modifying a column in copy book

krishnareddymsc · New User Joined: 08 Jan 2007 Posts: 9 Location: Bangalore

If we modify a column in a copy book...then in which areas we have to check wether it was running successfully, with out any abends...or errors...
to be clear.......if i have a column with 10 digits for an account no. now it was modified to 12 digits......then how can we modify the samee and where....?

my question is gettting ?

raviprasath_kp · New User Joined: 20 Feb 2005 Posts: 65 Location: chennai

hi you will to the impact analysis for that
where are we are using this copybook

then we will check these jobs predessor and successor also

priyesh.agrawal · Posted: Thu Jan 11, 2007 12:57 pm

It seems it is a working storage copybook and you are increasing length of a field.

There might bt two cases, one you are utilizing an existing filler which wouldn't cause a copybook expand and other you are adding extar chars which would increase length of the copybook.

So after making change in copybook you would need to find all the programs impacted, which includes this copybook and you'll need to modify those programs as coorresspond to that perticular field.

Now if that copybook is being used as a File layout description so you also need to update corresponding JCL to accomodate those extra bytes in the LRCEL of the relevent Input/Output file.