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Free Oracle Tips


Oracle Tips

Don Burleson


By Mark Rittman

Joe Celko On "Thinking In Aggregates"

"Set theory was one of the major advances in mathematics. Before Gregor Cantor invented set theory, collections of numbers were handled as sequences. A set is a completed whole with properties that belong the set, but not always to each individual element of the set. This is a big conceptual leap." writes Joe Celko in this article.



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