Your probably right that some automated process is used to create the update
files. My question is how the updates can be merged in to the main source
without something like a line number. The only thing I can think of is it
would use a relative record number from the beginning of the file. With a
line number in 73-80, I can visually see that the numbers are in sequence.
Without a line number, how do you know that the merge of the diff file with
the source has it in the correct sequence?
Eric Bielefeld
Sr. z/OS Systems Programmer
Milwaukee Wisconsin
414-475-7434
----- Original Message -----
From: "Paul Gilmartin" <[EMAIL PROTECTED]>
In a recent note, Eric N. Bielefeld said:
Date: Mon, 31 Jul 2006 17:25:18 -0500
I have a question to all those who don't think sequence numbers are
needed.
If you don't use sequence numbers either at the beginning or end of a
record, how do you electronically update a source deck, be it JCL, COBOL,
assember, a macro, or whatever? I don't think the DIFF command is the
answer. What does Microsoft use, or do they always just totally replace
source?
Something like "diff" is more frequently the answer than is generally
acknowledged. I wonder how much IEBUPDTE control input nowadays is
typed by hand vs. how much is generated by some sort of compare
utility, diff being only one instance?
-- gil
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