From: Dave Thomas <dave@...>
Date: 2008-04-12T05:40:35+09:00
Subject: Re: How to check record duplication before saving?


On Apr 11, 2008, at 3:36 PM, Frank Tsao wrote:
> So how to check and prevent a new record that has the same columns  
> with
> same values tend to be saved in database?

Try creating a unique database index that spans the two columns.


Regards


Dave