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Have a file consist records in variable Block length

 
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lakshmibala

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Joined: 16 Jun 2004
Posts: 47

PostPosted: Wed Aug 25, 2004 8:24 pm    Post subject: Have a file consist records in variable Block length
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Hi

This question asked in IBM

Have a file consist records in variable Block length one is 80,40,30,50...like that. i wanna sorted order thru their size. How to sort?
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mmwife

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Joined: 30 May 2003
Posts: 1592

PostPosted: Wed Aug 25, 2004 9:57 pm    Post subject:
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If you want to sort by BLOCK size, define the file as RECFM=U and define the sort key as the BDW (i.e. the 1st 4 bytes in the block).

I don't think you can sort by the RDW (rec descriptor word) because the 1st rec of each block looks like:

BDW|RDW|data

and the other recs in each block look like:

RDW|data

So, the sort key you need changes position in the 1st rec of each block.
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anuradha

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Joined: 06 Jan 2004
Posts: 247
Location: Hyderabad

PostPosted: Thu Aug 26, 2004 9:58 pm    Post subject:
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Hi Jack,

You rightly added a statement in your signature that too at right place. Now a days we are seeing many questions which are half informative.

Thanks,
Anu
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