There are a couple of ways to do this. If you want to disallow duplicates of the first field in general, then you should cerate a unique index on that column. This will prevent the following situation:

script invocation 1: insert dog|brown|fuzzy and cat|white|evil
script invocation 2: insert dog|grey|lucky and cat|grey|still evil

If you try that with the unique index, then you will get an error similar to the following "attempt to insert duplicate key row".

In reply to Re: VVP asks Unique field data? by thor
in thread VVP asks Unique field data? by Anonymous Monk

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