Re: CHGPF Question

["Kahn, David" <KAHN@xxxxxxxxxxxxxxxxxx>]

Dean Asmussen (DAsmussen@aol.com) wrote:

>Fine, but why create a new logical (and it's inherent overhead) when you
>already have one in place to perform the desired function?

The scheme simply gives you the freedom to make the decision whether
it's justified or not. You may want to create the new logical for
expediency and then at a later date incorporate the new field(s) into an
existing logical and retire the new one. You have the overhead of an
extra logical but you also have full database integrity.

You might also want to use it where the new fields applied only to a
limited set of functions. Only the programs used in those functions need
to see the new fields therefore the new logical is justified. All
programs are built over logical files containing just the fields
relevant to their function.

Dave Kahn - TCO, Tengiz, Kazakstan
=========

e-mail:  kahn@tengizchevroil.com    (until September 30th)
         dkahn@cix.compulink.co.uk  (from  October 1st)
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