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MySQL
Engine: InnoDB
I have a table, and I need two strings as primary key.
The reason for this is because I want ON DUPLICATE KEY UPDATE depended on those two strings.
How do I do that?
Ty in advance.
You should not use them as primary keys. Use them as
UNIQUEindices instead, andON DUPLICATE KEY UPDATEwill still work. I would advise that you set your primary key to be a single integer type column that is completely independent of your data.Have a look at this example: http://sqlfiddle.com/#!2/41f2d/1