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For Database Systems and Database Design and Application courses offered at the junior, senior, and graduate levels in Computer Science departments.
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Written by well-known computer scientists, this accessible and succinct introduction to database systems focuses on database design and use. The authors provide in-depth coverage of databases from the point of view of the database designer, user, and application programmer, leaving implementation for later courses. It is the first database systems text to cover such topics as UML, algorithms for manipulating dependencies in relations, extended relational algebra, PHP, 3-tier architectures, data cubes, XML, XPATH, XQuery, XSLT.
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This book is, however, a little disappointing. Most of it is good, some of it very good. But I do find some flaws in it. One of the glaring flaws deals with the attempt to extend the relational model from sets to bags (basically, to allow for duplicate tuples in relations.) This is the best attempt I've seen at formalizing "bag theory", but it introduces problems (some minor, others very serious) that aren't mentioned in the text. This review is too short and not the right place to expound on these problems. Chris Date's database text goes into most of them in substantial detail.
In summary, this book is good, with many good examples. I find it very readable. But it is not as good as Chris Date's Intro to Database Systems for the serious database professional. Ullman's book is good for showing another perspective to Date's solid (but somewhat opinionated) treatment of relational database theory.
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