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I believe that by adding the fields to the end of the file using CHGPF
that all programs that were compiled prior to the change will still work
fine(regardless of level check *YES or *NO) but will not recognize the
added fields until recompiled.
Incorrect.
Programs accessing a file that has changed since the program was last compiled will always fail if the
file has LVLCHK(*YES).
With the file set LVLCHK(*NO), if the only change was the addition of new fields and those new fields
were placed at the end of the file, then the program will work normally but will ignore the new
fields.
If LVLCHK(*NO) but field sizes and/or types where changed or new fields were added at the beginning or
middle of the file, then the program will seem to run normally, but the data will be screwed up.
IMHO, LVLCHK(*NO) is never acceptable. But Jeff's example of using it for a short well defined period
may be ok if you don't have a CMS.
Charles Wilt
--
Software Engineer
CINTAS Corporation - IT 92B
513.701.1307
wiltc@xxxxxxxxxx
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