ofer71
Global Moderator
Joined: 27 Dec 2005 Posts: 2358 Location: Israel
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Copybook is part of code that is saved as a separate member. During compilation, this part of code is COPYed into the program's source.
For example: If you have a working storage definitions of a file, and this file is used in many programs, you might want to put its record definition in a copybook to keep all your programs consistent.
Another example: Very complex calculations that regards the business directly and are part of the business guidelines might be saved as copybooks to keep it as a one point of update.
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