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Joe Celko's Trees and Hierarchies in SQL for Smarties
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Joe Celko
Morgan Kaufmann, Paperback, Published May 2004, 224 pages, ISBN 1558609202
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In a previous book, (SQL for Smarties, 2nd ed, MK, 1999) the author wrote two chapters on programming techniques for representing trees and hierarchies in SQL. Ever since then, he has answered constant personal emails and/or postings on various database-related Internet newsgroups on this topic. This isn't surprising. Trees and hierarchies are a natural way to organize information and they appear everywhere in computer science, from indexing structures (i.e. B-Tree indexing) to encoding schemes (i.e. Dewey Decimal Classification system for libraries) to hierarchical databases like IMS. Even XML and related markup languages—which interact with databases--are based on tree structures. Every SQL programmer is faced with the challenge of creating these structures, which are not easy to master and have far-reaching programmatic effects.
    · Joe Celko is a best-selling author and SQL cult hero, whose first book (SQL for Smarties) sold over 40,000 copies over two editions.
    · This is the first developer's guide that addresses a topic that is universally difficult for programmer's to master.
    · This book is web-enhanced with downloadable SQL code, ready to use.

 

Table of Contents

Chapter 1 Graphs, Trees and Hierarchies • Chapter 2 Adjacency List Model • Chapter 3 Path Enumeration Models • Chapter 4 Nested Set Model of Hierarchies • Chapter 5 Frequent Insertion Trees • Chapter 6 The Linear Version of the Nested Sets model • Chapter 7 Binary Trees • Chapter 8 Other Models for Trees • Chapter 9 Proprietary Extensions for Trees • Chapter 10 Hierarchies in Data Modeling • Chapter 11 Hierarchical Encoding Schemes • Chapter 12 Hierarchical Database Systems (IMS)

 

About the Author

Joe Celko is a noted consultant, lecturer, writer, and teacher whose column in Intelligent Enterprise has won several Reader's Choice Awards. He is well known for his ten years of service on the ANSI SQL standards committee, his dependable help on the DBMS CompuServe Forum, and the war stories he tells to provide real-world insights into SQL programming.




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