I am a mediocre developer for the last 15 years. I don't know how to do a 2-column primary key or foreign keys. I have struggled in vain for the past 2 weeks to learn how to do these things. Now I'm hiring someone who knows how to do PHP / MySQL foreign keys using a 2-column primary key... (Budget: $250 - $750 USD, Jobs: HTML, JavaScript, MySQL, PHP)
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