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varchar data item

 
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Ambili S

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Joined: 06 Sep 2007
Posts: 112
Location: India

PostPosted: Mon Sep 20, 2010 8:52 pm    Post subject: varchar data item
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For a varchar data item , the following declaration is used.

01 A.
49 ws-len pic s9(4) comp.
49 ws-text pic x(3).

my query is how does ws-len get the value ? is it passed via parm in jcl , or do we pass it in cobol pgm ?

Thanks
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dbzTHEdinosauer

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Joined: 20 Oct 2006
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Location: porcelain throne

PostPosted: Mon Sep 20, 2010 9:03 pm    Post subject:
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when the var char column is to be updated or inserted via sql,
the length must be populated prior to execution of the sql.

DB2 will populate the length during a Select operation.
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Ambili S

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PostPosted: Mon Sep 20, 2010 10:41 pm    Post subject: Reply to: varchar data item
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Yes for DB2 it's as you said . But in simple COBOL pgm for a varchar declaration , how would the length be populated ?
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dick scherrer

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Joined: 23 Nov 2006
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PostPosted: Mon Sep 20, 2010 10:46 pm    Post subject:
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Hello,

If level 49 is used, it is a db2 item (unless some mistake has been made).

The way a working-storage field of varying length is defined is usually with an OCCURS DEPENDING ON.
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