How To Check And Update Table?
I am trying to work out the best way to update the details in a table I have for customer data.
Each time the customer interacts with the script all the data that is used in the table is sent to the script from an external source.
What I want to do is check to see if the email address is already in the table.
If it is I want to check all the other fields and update the data.
If the email address is not in the table I want to add all the details as a new user.
I am playing with this code but I can't see to get check right to see if the email address exsists. This code always inserts a new customer into the table.
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