Its not often that I learn something new about the fundamentals of SQL. Sure they add to the syntax all the time and you learn something about what you can do with these addition but fundamentals, that’s basic stuff – the kind of stuff you rattle off a thousand times a day without even thinking about it . I’m talking about stuff I should have known though it seems that I am not alone so I thought I would share this tidbit. This knowledge is to do with the DISTINCT keyword of all things.
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Written by Conrad Rowlands, Lead Developer, Developer Solutions
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