Choosing a key: the decision that’s hardest to take back
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Every row in a database needs a way to be pointed at. That’s the key. It looks like the most boring column in the table, and it’s the one…

 

 Every row in a database needs a way to be pointed at. That’s the key. It looks like the most boring column in the table, and it’s the one…Continue reading on Medium » Read More Sql on Medium 

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By ali

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