Beginning SQL Queries: From Novice to Professional / Edition 1

Beginning SQL Queries: From Novice to Professional / Edition 1

by Clare Churcher
     
 

ISBN-10: 1590599438

ISBN-13: 9781590599433

Pub. Date: 04/15/2008

Publisher: Apress

Clare Churcher’s Beginning SQL Queries is your guide to mastering the lingua franca of the database industry: the SQL language. Good knowledge of SQL is crucial to anyone working with databases, because it is with SQL that you retrieve data, manipulate data, and generate business results. Knowing how to write good queries is the

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Overview

Clare Churcher’s Beginning SQL Queries is your guide to mastering the lingua franca of the database industry: the SQL language. Good knowledge of SQL is crucial to anyone working with databases, because it is with SQL that you retrieve data, manipulate data, and generate business results. Knowing how to write good queries is the foundation for all work done in SQL, and it is a foundation that Clare lays well in her book.

  • Does not bore with syntax!
  • Helps you learn the underlying concepts involved in querying a database, and from there the syntax is easy
  • Provides exceptionally clear examples and explanations
  • Is academically sound while being practical and approachable

What you’ll learn

  • Write simple queries to extract data from a single table
  • Understand relational algebra and calculus and why they are important
  • Combine data from many tables into one business result
  • Avoid pitfalls and traps such as Cartesian products and difficulties with null values
  • Summarize large amounts of data for reporting purposes
  • Apply set theory to the problems of manipulating data and generating reports

Who this book is for

Beginning SQL Queries is aimed at intelligent laypeople who need to extract information from a database, and at developers and other IT professionals who are new to SQL. The book is especially useful for business intelligence analysts who must ask more complex questions of their database than their GUI–based reporting software supports. Such people might be business owners wanting to target specific customers, scientists and students needing to extract subsets of their research data, or end users wanting to make the best use of databases for their clubs and societies.

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Product Details

ISBN-13:
9781590599433
Publisher:
Apress
Publication date:
04/15/2008
Series:
Books for Professionals by Professionals Series
Edition description:
2008
Pages:
240
Product dimensions:
7.00(w) x 9.25(h) x 0.51(d)

Table of Contents

Ch. 1 Relational Database Overview 1

Ch. 2 Simple Queries on One Table 17

Ch. 3 A First Look at Joins 41

Ch. 4 Nested Queries 61

Ch. 5 Self Joins 77

Ch. 6 More Than One Relationship Between Tables 95

Ch. 7 Set Operations 107

Ch. 8 Aggregate Operations 133

Index 211

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