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Technology Stocks : Oracle Corporation (ORCL)

ORCL 217.53

-4.2%

Nov 13 3:59 PM EST

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To: Lizzie Tudor who wrote (8480)	9/28/1998 3:12:00 PM
From: Michael Olin	Read Replies (1) of 19079

Strange, I don't remember it (UFI) from the SystemR papers. I don't even think I have them laying around anymore. The only thing I have that even mentions SystemR is probably the first or second edition of Ullman's "Introduction to Database Systems". That text is a classic. It even has a detailed discussion of Quel which I think was Ingres' original query language. At the time, there actually was debate as to whether or not SQL would become the standard query language for relational databases. One of these days I'll do the "Relational Algebra vs. Relational Calculus" paper at a conference. People just take SQL for granted now. If you understand a little about how it actually works (theory, ugh), you can write queries that are much more efficient than the current crop of query optimizers allow. -Michael

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