Recompiling Copybook after add a new field

Arun Raj · Posted: Mon Nov 20, 2006 5:44 pm

Hii

I have a copybook which is used over several programs.I want to add a new field to the copybook which is not referenced in some of the abovesaid programs.Do i need to recompile all the programs?

Thanks
Archana

William Thompson · Posted: Mon Nov 20, 2006 6:02 pm

Only if the addition of the filed changes the relitive displacement of other fields that are referenced. Or if the copybook defines a record whose length has changed.

guptae · Posted: Mon Nov 20, 2006 6:05 pm

Hi Archana,

If the adding the new field in the copybook at end & the programs are not going to use this then there is no need to recompile those program.

sihanature · New User Joined: 01 Sep 2005 Posts: 33

Hi

Yes we need to recompile this copybook when the program is going to have impact due to this.

Regards

vijay_bn79 · New User Joined: 20 Nov 2006 Posts: 48 Location: Hyderabad

Hi..,

If the new field is added to the copy book and if the program not copiled then it will take the old load module only, even though if you add in the middle or at the end it wont consider, if you compile the program then only it will get effective, if you recompiled the program and eventhough if your program is not using that field(record length will be incresed by adding the filed in the layout) then it may fail becouse it will take the new load module,
if you are adding any new field to copy book then it is better to recompile all the programs which are all using this copy book

Arun Raj · Posted: Mon Nov 20, 2006 6:35 pm

Hi

Thanks for the clarification.Suppose the new field I want to add is a level-88 data item(condition name).What would be the solution in that case?

Thanks

vijay_bn79 · New User Joined: 20 Nov 2006 Posts: 48 Location: Hyderabad

William Thompson · Posted: Mon Nov 20, 2006 6:44 pm

If the ** is the only thing you add, to an existing field definition, no recompile is needed.

vijay_bn79 · New User Joined: 20 Nov 2006 Posts: 48 Location: Hyderabad

Arun Raj · Posted: Mon Nov 20, 2006 6:59 pm

William Thompson · Posted: Mon Nov 20, 2006 7:01 pm

Silly me....** is a shifted 88......

vijay_bn79 · New User Joined: 20 Nov 2006 Posts: 48 Location: Hyderabad

Arun Raj · Posted: Mon Nov 20, 2006 7:17 pm

William Thompson · Posted: Mon Nov 20, 2006 7:21 pm

Vijayakumar,

If Arcvns only adds an 88, all existing programs don't give a hoot if it is there or not, before it was added, none of them were using it and after it was added are you expecting some of the programs to auto-magicly attempt to re-code themselves?

Arun Raj · Posted: Mon Nov 20, 2006 7:31 pm

William Thompson · Posted: Mon Nov 20, 2006 7:45 pm

Archana,

Cute, quoting yourself....grin.....

OK, you have a copybook that is used in a number of programs, right?

You changed? added? both? a field? condition name? both? to that copybook, right?

You want to know if the programs that have the copybook but do not reference the field? condition name? that you changed? added? need to be recompiled, right?

That depends on whether or not you physically changed the displacement of fields that those other programs do reference or, if the copybook was used to define a record layout, you changed the length of that record.

Information is power but you are not really providing enough of it for anybody to provide an absolute answer.

vijay_bn79 · New User Joined: 20 Nov 2006 Posts: 48 Location: Hyderabad

Hi..,

What i mean is.., if you change anything in the copy book or in the program and if you are not recompiling means it will take the old load module i mean it will consider the old program and old copy book only and it wont consider the new program or new copy book..,
so the changes wont affect to the other programs if those programs not compiled

jituitbhu · New User Joined: 03 Jun 2005 Posts: 3 Location: Pune,India

Hi,
Whenever there is change in the copybook, it's good practice to recompile all the programs which are using the copybook. In this case, even if you don't recompile those programs which are not using this new 88-condition then also, there is not going to be any problem.

In case of any production abend in the program, the production support team may refer to the modified copybook and so it can create confusion to the production support team if not recompiled before.

Arun Raj · Posted: Tue Nov 21, 2006 10:32 am

Hi

Thank u so much.This is exactly what I wanted to know.I hope you understood my problem with the information provided.Thank u all

Regards.

cooldebi · New User Joined: 19 Apr 2006 Posts: 18 Location: mumbai

Archna,
Recomplie all the programs in which that
1. copybook is copied(in the working storage section) ..or

2. if it is passed to any other subroutine with the commarea(if it is an online code)..then compile those subroutines