• Subject: RE: PF File Definition questions...
  • From: John P Carr <jpcarr@xxxxxxxxxxxx>
  • Date: Fri, 15 Oct 1999 15:09:50 -0400


>Rob,
>My experience is that you can delete/recreate the PF or LF and the record
f>ormat level ID will remain the same.  The "level check signature" isn't
>based on date/time (like the file level ID), but on the number, type and
>size of the fields defined within the record.  You can make lots of changes
>to a field (TEXT, COLHDG, EDTCDE, DFT come to mind) without creating level
>check problems.  It appears that the level check signature is based on the
>way the I/O buffer looks to the HLL program (which includes CL.)
>Buck Calabro

In addition,   You can change the keys of the file and NOT affect the level
check ID.

Becareful out there.

John Carr




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