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Don't know - probably - easy enough to check - CRTDUPOBJ on the logical to a different library (or CRTLF into a different library), DSPFD and find the format level ID at the bottom, make the change, repeat DSPFD and see what happens.

DLTF after you find out!!

Vern

James H. H. Lampert wrote:
Suppose I have a uniquely-keyed logical with a SELECT. Case in point, a logical, uniquely keyed on customer number, limited to records of type "customer."

Suppose I modify this logical so that it is limited to records of type "customer" in which the customer number field is nonblank.

Would this change cause a level-check error when an existing program tries to open the logical?

--
JHHL

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