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Unique Constraint over all 4 fields would work and is the 'easiest'
solution.
I don't think Check Constraint would work... well, perhaps with some sort of
UDF it might... something to test.
Elvis
Celebrating 11-Years of SQL Performance Excellence on IBM i, i5/OS and
OS/400
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-----Original Message-----
Subject: SQL Table / DDL question on using Unique keyword
Is it possible to set it up so that I have to have a unique combination
of
fields. Example I have four fields, Employee first name, Employee second
name, city, and state. I do not want a BOB Smith in the same city and
state but I do not care if I have twenty Bob Smith's in the file.
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