An Introduction to Database Systems


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A classic book, revised--the best, most comprehensive, and most up-to-date treatment of database concepts and technology available. Contains greatly expanded treatment of object-oriented database system, including a proposal for rapprochement between OO and relational technologies. Includes important new chapters on functional dependencies, views, domains, and missing information.

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Jul 10, 2008

Theory meets practice

I'm self-teaching, know just enough to be dangerous, and am more persistent than rigorous. There is one whole lot of books out there on database theory, another on SQL, and yet another on how to use this or that DBMS to build a type of database, but nothing else I've found does as well at getting from requirements to queries. Date's book is general (applicable to all relational DBMSes) and theoretical. But more than theory, what it gives is sound general practice: this is how you look at your business requirements, how you break them down into tables and relations to enable the requisite queries. And in the process you see the whys behind the hows, and (I hope) learn the lexicon so your DBMS-specific books can speak to you. Given my needs, it's very readable.

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