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  • Subject: Re: Implicit moving of data to DS subfields on chain/reade
  • From: Jon.Paris@xxxxxxxxxx
  • Date: Mon, 16 Aug 1999 16:44:46 -0400



 >> When reading through a keyed file which contains one long char field (200A),
is it possible to define a DS in such a way that when a read/chain/reade . . .
is performed on the file the DS subfields are implicitly updated ? Currently, I
simply move the field into the DS and was wondering if there was a way to
implicitly do this (call me lazy).

Nothing lazy about it.

Simply code an externally described DS using the name of the physical file as
the external name.

e.g.

 D MyRecordDS   EDS                        ExtName(MyFile)

That's it.

I suspect that this also provides a faster read than the "normal" method since
the compiler should be able to move the whole record buffer as one "lump" rather
than a field at a time. Or at least it should be able to.

If you are reading this Hans can you confirm this ?



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