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Ali_gezer
Active User
Joined: 06 Apr 2021
Posts: 123
Location: argentina
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Hello, how are you?
I have to change one field of a copybook. Right now it is PICTURE -9(5)V99 but I have to change it to PICTURE -9(7).V99.
Can I use some filler and reduce it 2 bytes and add this 2 bytes to the field I have to change ( add 2 to -9(5)V99 )
Can I use any filler of the copybook? Is this just a good way to do it?
Greetings. |
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Rohit Umarjikar
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Joined: 21 Sep 2010
Posts: 3076
Location: NYC,USA
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You need to adjust the filler where this field fall off.
Moved to student section . |
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Ali_gezer
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Joined: 06 Apr 2021
Posts: 123
Location: argentina
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| Rohit Umarjikar wrote: |
You need to adjust the filler where this field fall off.
Moved to student section . |
Hello.
Thanks.
Can I ask you something, I can reduce any filler of the copy?
When I reduce FILLER fields that are the same level of the field I have to change nothing happens and I have a error in file manager ( =LGTH), but when I reduce the filler field of a lower levelfiller field then I see the change I want and the field manager is ok. |
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sergeyken
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Joined: 29 Apr 2008
Posts: 2141
Location: USA
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| Please, read carefully about COBOL structures. |
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Rohit Umarjikar
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Joined: 21 Sep 2010
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Location: NYC,USA
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| You can also share snippet of your code structure outlining the change and showing what works and what don't to be able to get helped further. |
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Ali_gezer
Active User
Joined: 06 Apr 2021
Posts: 123
Location: argentina
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| Rohit Umarjikar wrote: |
| You can also share snippet of your code structure outlining the change and showing what works and what don't to be able to get helped further. |
My doubt is where I should substract bytes, in which filler.
For example
| Code: |
01
05 FIELD-1 PIC-9(5).99
05 FILLER PIC X(10)
05 FIELD-2 PIC X(10)
05 FIELD-3 REDEFINES FIELD-2
07 SUB-FIELD PIC X(5)
07 FILLER PIC X(5)
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My doubt is that when I substract 2 bytes from 05 FILLER PICX(10) and I use this bytes an add to 05 FIELD-1 PIC-9(5).99 then when I see the filemanager I see an =LGTH error. But when I substract 2 bytes from 07-FILLER PIC X(5) and add them to 05 FIELD-1 PIC-9(5).99 obtaining pic-9(7).99 then when I see the file manager I see everything OK and no errors.
My doubt is if always when I have to use a filler to add bytes to other fields if always the filler has to be of a lower level (in my example I have to substract bytes from a filler level 7 ,the level 5 filler if I take bytes from it and then I add this bytes to other field this has no effect)
thanks! |
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enrico-sorichetti
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Joined: 14 Mar 2007
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Location: italy
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when you change the layout of a record
before using a program/utility referencing the NEW layout you should convert the datasets involved from the old layout to the new one |
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Ali_gezer
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Joined: 06 Apr 2021
Posts: 123
Location: argentina
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| enrico-sorichetti wrote: |
when you change the layout of a record
before using a program/utility referencing the NEW layout you should convert the datasets involved from the old layout to the new one |
Yes. Thats a thing that I checked. Thanks. |
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Ali_gezer
Active User
Joined: 06 Apr 2021
Posts: 123
Location: argentina
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| enrico-sorichetti wrote: |
when you change the layout of a record
before using a program/utility referencing the NEW layout you should convert the datasets involved from the old layout to the new one |
can you give me your thoughts about the question that I made to Rohit Umarjikar?
thanks |
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Rohit Umarjikar
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Joined: 21 Sep 2010
Posts: 3076
Location: NYC,USA
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Ideally you are missing the FILLER at the end of all variables defined at 05 level as that will give you room to adjust the total layout.
E.g.
| Code: |
01
05 FIELD-1 PIC-9(5).99
05 FILLER PIC X(10)
05 FIELD-2 PIC X(10)
05 FIELD-3 REDEFINES FIELD-2
07 SUB-FIELD PIC X(5)
07 FILLER PIC X(5)
05 FILLER PIC X(100) |
This should be changed to
| Code: |
01
05 FIELD-1 PIC-9(7).99
05 FILLER PIC X(10)
05 FIELD-2 PIC X(10)
05 FIELD-3 REDEFINES FIELD-2
07 SUB-FIELD PIC X(5)
07 FILLER PIC X(5)
05 FILLER PIC X(98) |
This way your entire record layout doesn’t change. If you change the in between FILLERS then that might break the process consuming this data. |
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Ali_gezer
Active User
Joined: 06 Apr 2021
Posts: 123
Location: argentina
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| Rohit Umarjikar wrote: |
Ideally you are missing the FILLER at the end of all variables defined at 05 level as that will give you room to adjust the total layout.
E.g.
| Code: |
01
05 FIELD-1 PIC-9(5).99
05 FILLER PIC X(10)
05 FIELD-2 PIC X(10)
05 FIELD-3 REDEFINES FIELD-2
07 SUB-FIELD PIC X(5)
07 FILLER PIC X(5)
05 FILLER PIC X(100) |
This should be changed to
| Code: |
01
05 FIELD-1 PIC-9(7).99
05 FILLER PIC X(10)
05 FIELD-2 PIC X(10)
05 FIELD-3 REDEFINES FIELD-2
07 SUB-FIELD PIC X(5)
07 FILLER PIC X(5)
05 FILLER PIC X(98) |
This way your entire record layout doesn’t change. If you change the in between FILLERS then that might break the process consuming this data. |
Pardon me, it dont letme edit the last messagge, I tried as you said, putting the filler in the last position and it works. is vital to put the filler in that last position, I dont know why it is but it worked as you said before
thanks!! |
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Rohit Umarjikar
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Joined: 21 Sep 2010
Posts: 3076
Location: NYC,USA
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| Never mind , I cleaned up the post. |
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