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fawzy47
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Joined: 22 Oct 2005
Posts: 42
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Hello,
What is Declarative, and how and for waht reason do you use them in a COBOL program
Thank you
Fawzy |
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ofer71
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Joined: 27 Dec 2005
Posts: 2358
Location: Israel
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Declaratives are well documented in the fine manual.
O. |
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cevelavl
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Joined: 20 Feb 2006
Posts: 4
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Hi,
Declaratives are the sections in the begin of the procedure division that are to be executed when a specific exception or condition occurs based on the USE statement.
The main useful is the "USE AFTER ERROR ON file-name-x" which gives the possibility for the universal file-status-checking or "USE BEFORE REPORTING identifier-y" in report writer.
Procedures in DECLARATIVES are executed automatically after the detection of prescribed conditions - i.e. programmer cannot start them.
This example is from z/OS but in VS Cobol II it is analogous:
http://publibfp.boulder.ibm.com/cgi-bin/bookmgr/BOOKS/IGY3PG30/1.13.4.2?SHELF=igy3sh31&DT=20050628164603& |
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fawzy47
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Joined: 22 Oct 2005
Posts: 42
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Thank you
that was very helpful
Fawzy |
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