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Does this make sense? Is there a better way? I'm trying to find out if
two files are the same. Here's my SQL statement:

SELECT count(*) FROM firstlib/mhrdclp a, secondlib/mhrdclp b where
a.mdvnda = b.mdvnda and a.mdmdl = b.mdmdl and (a.mddual <> b.mddual
or a.MDCMFRT <> b.MDCMFRT or a.MDLP <> b.MDLP or a.MDSF <> b.MDSF)

File MHRDCLP has the following fields:
mdvnda
mdmdl
mddual
mdcmfrt
mdlp
mdsf

I want to see if I have any records that match mdvnda and mdmdl have
any of the other four fields different.

Thanks!

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