Check for Duplicates in a Database Before Entering Data

Posted by gamerzfuse on Stack Overflow See other posts from Stack Overflow or by gamerzfuse
Published on 2010-03-23T02:34:44Z Indexed on 2010/03/23 2:41 UTC
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sql

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php5

Before Entering data into a database, I just want to check that the database doesn't have the same username in the database already.

I have the username in SQL set as a key, so it can't be duplicated on that end, but I am looking at finding a more user-friendly error message then "KEY already exists".

Is there are simple way to check if the variable value already exists in a row?

Thanks!

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