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Joe Celko's Thinking in Sets:  Auxiliary, Temporal, and Virtual Tables in SQL

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THIS BOOK DEALS with the use of various kinds of SQL programming techniques that make use of tables rather than procedural code. I have been telling people that the biggest obstacle to learning SQL is unlearning procedural programming, but saying that does not show someone who has been thinking in fi les and procedural code his or her entire career how to do things in a declarative relational language. Hence this book, with actual techniques and an explanation of the thought processes that lead to them.

Like all of my other books, this one is for the working SQL programmer who wants to pick up good SQL programming techniques. It assumes that readers know the language well enough to write code that runs and that they are approaching their first year of actual SQL experience.

Why a year? My experience in teaching SQL for the past few decades is that the average SQL programmer goes through phases while moving from procedural programming languages such as FORTRAN, Cobol, Pascal, the C family, OO languages, and whatever else the “application language du jour” happens to be this year. A declarative language is totally different from anything they have done before.
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