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Prevent duplicate entries

Hi experts,

I have a sp that inserts (registers) user, how can I stop getting multiple entries of the same user, for example, an operator enters the following details:

First Name: Wayne
MiddleName: A
LastName : Atherton
etc......


the sp returns an out put value for the new user id, so how do I prevent another user being entered with exactly the same details, currently after i insert a new users a auto number is created to represent the user.

cheers

Wayne
0
watherton
Asked:
watherton
1 Solution
 
Carl TawnSystems and Integration DeveloperCommented:
Just get your SP to check for an existing record first and return its ID if found, otherwise it adds it as a new record. Something like:

     IF NOT EXISTS(SELECT YourFields FROM YourTable WHERE YourCriteria)
     BEGIN
         /* Insert a new record */
     END
     ELSE
     BEGIN
        /* Retrieve the existing record */
     END
0
 
wathertonAuthor Commented:
thanks carl, job for the db team them - great stuff :-)
0

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