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My one unbreakable rule is that there are no unbreakable rules.
I've been doing quite a bit of research recently in the area of
mitigating change impact in 24/7 shops. It's been a revelation. When
using an externally described data area as a reference file (as in my
example) there is no more linkage to the file definition than if you
compiled over a view. So yes, you're referencing the file, but no,
you're not in danger of a level check.
... create view is your friend. You must not reference any file in
your programms anyway, never ever.
D*B
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