Tag Archives: joins

Using SQL to Mege Three Incomplete Data Sets

You can join data sets. LEFT JOIN, RIGHT JOIN, even OUTER APPLY. There’s nothing to learn here. Last week, I had what seemed to be a simple join of three data sets. My permutation was a lot more complicated than … Continue reading

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Update Across Joined Tables in MySQL

I had to do a MySQL update on records that were retrieved from a two-table join today. I shouldn’t have been surprised to find that I needed a different syntax than I know from MS SQL, where I would write, … Continue reading

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