Hi
I want to enforce unique records in one of my
tables.
The table goes like this:
ID INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
customerID INT UNSIGNED,
categoryname VARCHAR(20)
With customer ID pointing to a customers table.
I suddenly realized that one customer could input
the same "categoryname" twice, which would create
a duplicate entry in the database. (if you ignore the
primary key).
Is there something in
MySQL, or in my table design, that can force unique records?
Or will I have to check this with my code everytime I
update the database?
Thanks very much for any help! Much appreciated.
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