Joe Celko 世界著名的數據庫專傢，曾擔任ANSl SQL標準委員會成員達10年之久，參與瞭SQL-89和SQL-92標準的製定，是世界上讀者數量最多的SQL圖書作者之一。他曾撰寫過一係列專欄，並通過他的新聞組支持和推動瞭數據庫編程技術以及ANSl/ISO標準的發展。除本書外，他還撰寫瞭多部SQL經典著作，包括《SQL編程風格》、《SQL解惑》和《SQL權威指南》，上述作品的中文版均已由人民郵電齣版社齣版。

在綫閱讀本書

In this complete revision and expansion of his first SQL Puzzles book, Joe Celko challenges you with his trickiest puzzles-and then helps solve them with a variety of solutions and explanations. Joe demonstrates the thought processes that are involved in attacking a problem from an SQL perspective to help advanced database programmers solve the puzzles you frequently face. These techniques not only help with the puzzle at hand, but help develop the mindset needed to solve the many difficult SQL puzzles you face every day. Of course, part of the fun is to see whether or not you can write better solutions than Joe's.

* A great collection of tricky SQL puzzles with a variety of solutions and explanations. * Uses the proven format of puzzles and solutions to provide a user-friendly, practical look into SQL programming problems - many of which will help users solve their own problems. * New edition features: - Many new puzzles added! - Dozens of new solutions to puzzles, and using features in SQL-99 - Code is edited to conform to SQL STYLE rules - New chapter on temporal query puzzles - New chapter on common misconceptions about SQL and RDBMS that leads to problems