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Validate User Name

747754Mar 25 2010 — edited Mar 25 2010
Hello.

I have created an (add_user) procedure to the registration page in my application. the user name must be unique, what king of validation should I use in order check the existence of the user name in the (APP_USERS) table?

I managed to do this from the back end in the database and from the Processes of the APEX page but I have seen some APEX web sites where they implement this function using the validation.

Thanks
AL
This post has been answered by 613930 on Mar 25 2010
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Locked on Apr 22 2010
Added on Mar 25 2010
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