Well, that won't work. There's duplicate values so it won't let me make it a candidate key. Any other ideas?

Thanks,

Michelle


>Sorry, I wasn't clear enough in my first post. You create the rule by creating a candidate index on that field.
>
>HTH

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>Ok, I looked at it. How do you make a rule that it's not a duplicate? The rule is an expression. I can't think of an expression that would do it.