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Rory Hewitt wrote:
I believe you can use QUALIFIED with EXTNAME, so there's not much difference
in functionality. The newer way is to use LikeRec, but it's only really
better if you have record formats which have different *INPUT and *OUTPUT
fields (as with display file records, for instance).

You can do that with EXTNAME too. EXTNAME(myfile:myfmt:*INPUT).

Marco wrote:
One difference is about null capable fields.

A DS defined with EXTNAME also defines the relevant subfields as null capable.

Scott Klement wrote:
(Personally, I think LIKEREC was totally unnecessary, and wish they had just extended EXTNAME in the first place.)

Me too. Unofficially, of course. EXTNAME and LIKEREC have exactly the same functionality except that LIKEREC doesn't allow you to add more subfields. But that's not really a feature, since if you add more subfields to the EXTNAME structure, the original subfields still exactly match the I/O buffer.





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