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Chuck,

I remember reading and using the "System Data Areas" manuals on the S/36.
The main part that I used (or, more correctly at this distance, recall
using) was the chapters on the F5 records, which defined the VTOC key into
the data. I have never seen/found anything equivalent for the
AS/400/iSeries/System i, but it would seem that there has to be an "index"
that tells the OS where to start reading (address of the first record),
fields, etc. I had to "blackmail" an SE in order to get my copy so maybe
I'll have to try something similar - except there are no SEs now.

I do recall writing an RPG IV program defining a "flat file" as "externally
described" as opposed to using "program described" I-specs. So these
faux-fields, no matter how they are created, have to be *real* fields to the
DBMS. Also, if one runs DSPFFD over a "flat file," these faux-fields are
listed in the output.

Jerry C. Adams
IBM i Programmer/Analyst
How could they tell? -Dorothy Parker on being told that Calvin Coolidge had
died

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