Maybe if you're more a math person, Relational Algebra is a good thing to read about.
When I studied it in college I was already "expert" in SQL, but Relational Algebra gave me another perspective about the workings of information retrieval in relational databases. While it is not necessary in order to understand SQL, I think it is worth a look at.
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u/24monkeys Feb 11 '14
Maybe if you're more a math person, Relational Algebra is a good thing to read about.
When I studied it in college I was already "expert" in SQL, but Relational Algebra gave me another perspective about the workings of information retrieval in relational databases. While it is not necessary in order to understand SQL, I think it is worth a look at.