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SQL is full of difficulties and traps for the unwary. You can avoid them if you understand relational theory, but only if you know how to put the theory into practice. In this insightful book, author C.J. Date explains relational theory in depth, and demonstrates through numerous examples and exercises how you can apply it directly to your use of SQL.

This 2nd edition includes new material on recursive queries, "missing information" without nulls, new update operators, and topics such as aggregate operators, grouping and ungrouping, and view updating. If you have a modest-to-advanced background in SQL, you'll learn how to deal with a host of common SQL dilemmas.

Publisher: O'Reilly Media
Author: C.J. Date
ISBN: 978-1-44931-640-2
Year: 2011
Pages: 448
Language: English
File size: 22.4 MB
File format: PDF
Buy: SQL and Relational Theory, 2nd Edition

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