Not to get too far OT, but why is it a "no no" to have two primary keys?

By two primary keys, you mean a composite primary key, right? (since you can't have two primary keys by definition -- you can have two candidate keys though).

Either way, I think it's wrong to suggest that either composite candidate keys or multiple candidate keys is a design error. In many cases it's precisely the right thing to do, since you're trying to express the meaning of your data.

In reply to Re: One Thing Of Litte To No Consequence, And What Hopefully Is An Answer by Anonymous Monk
in thread String data, right truncation error with DBD::ODBC and MS SQL Server 2000 by Anonymous Monk

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