Re: Comparing Two Copies of a Physical File

<Andrew>
I need to compare the results of two different programs, as stored in the same physical file. I have saved copies of both iterations, but am trying to figure out how to do a field level comparison based on a keyed record join.
I'm trying to avoid an SQL with a select based on differences between fields in the two files because there are 54 fields in the format.
TAATOOLs has a CMPDBF command, but it's an E1 file with null value fields. In the case of nulls, I would want no comparison if both versions of the field in question have null values.
Z/OS has a compare utility, but I can't find a match on the i. CMPPFM won't work because the files are way too large.
Is there a way to do this without a massive SQL statement comparing at the field level with 50 fields to compare for possible differences?
</Andrew>

... what about journaling the file and compare the journaled images of the related entries of your programm runs?

D*B