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SQL Queries for Mere Mortals(r): A Hands-On Guide to Data Manipulation in SQL (For Mere Mortals)

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Synopses & Reviews

Publisher Comments:

Unless you are working at a very advanced level, this is the only SQL book you will ever need. The authors have taken the mystery out of complex queries and explained principles and techniques with such clarity that a "Mere Mortal" will indeed be empowered to perform the superhuman. Do not walk past this book!

--Graham Mandeno, Database Consultant

SQL Queries for Mere Mortals provides a step-by-step, easy-to-read introduction to writing SQL queries. It includes hundreds of examples with detailed explanations. This book provides the tools you need to understand, modify, and create SQL queries

--Keith W. Hare, Convenor, ISO/IEC JTC1 SC32 WG3--the International SQL Standards Committee

I learned SQL primarily from the first edition of this book, and I am pleased to see a second edition of this book so that others can continue to benefit from its organized presentation of the language. Starting from how to design your tables so that SQL can be effective (a common problem for database beginners), and then continuing through the various aspects of SQL construction and capabilities, the reader can become a moderate expert upon completing the book and its samples. Learning how to convert a question in English into a meaningful SQL statement will greatly facilitate your mastery of the language. Numerous examples from real life will help you visualize how to use SQL to answer the questions about the data in your database. Just one of the "watch out for this trap" items will save you more than the cost of the book when you avoid that problem when writing your queries. I highly recommend this book if you want to tap the full potential of your database.

--Kenneth D. Snell, Ph.D., Database Designer/Programmer

I don't think they do this in public schools any more, and it is a shame, but do you remember in the seventh and eighth grades when you learned to diagram a sentence? Those of you who do may no longer remember how you did it, but all of you do write better sentences because of it. John Viescas and Mike Hernandez must have remembered because they take everyday English queries and literally translate them into SQL. This is an important book for all database designers. It takes the complexity of mathematical Set Theory and of First Order Predicate Logic, as outlined in E. F. Codd's original treatise on relational database design, and makes it easy for anyone to understand. If you want an elementary- through intermediate-level course on SQL, this is the one book that is a requirement, no matter how many others you buy.

--Arvin Meyer, MCP, MVP

Even in this day of wizards and code generators, successful database developers still require a sound knowledge of Structured Query Language (SQL, the standard language for communicating with most database systems). In this book, John and Mike do a marvelous job of making what's usually a dry and difficult subject come alive, presenting the material with humor in a logical manner, with plenty of relevant examples. I would say that this book should feature prominently in the collection on the bookshelf of all serious developers, except that I'm sure it'll get so much use that it won't spend much time on the shelf!

-- Doug Steele, Microsoft Access Developer and author

Over the last several decades, SQL has evolved from a language known only to computer specialists to a widely used international standard of the computer industry. The number of new applications deployed each year using SQL now totals in the millions. If you are accessing corporate information from the Internet or from an internal network, you are probably using SQL. This new edition of SQL Queries for Mere Mortals helps new users learn the foundations of SQL queries, and is an essential reference guide for intermediate and advanced users.

The accompanying CD contains five sample databases used for the example queries throughout the book in four different formats: Microsoft SQL Server 2000 and later, Microsoft Access 2000 and later, MySQL version 5.0 and later, and SQL scripts that can be used with most other implementations of the language.

Synopsis:

This is the eBook version of the printed book.

Over the last several decades, SQL has evolved from a language known only to computer specialists to a widely used international standard of the computer industry. The number of new applications deployed each year using SQL now totals in the millions. If you are accessing corporate information from the Internet or from an internal network, you are probably using SQL. SQL Queries for Mere Mortals will help new users learn the foundations of SQL queries, and will prove to be an essential reference guide for intermediate and advanced users.

The accompanying CD contains five sample databases used for the example queries throughout the book in four different formats: Microsoft SQL Server 2000 and later, Microsoft Access 2000 and later, MySQL version 5.0 and later, and SQL scripts that can be used with most other implementations of the language.

Synopsis:

"SQL Queries for Mere Mortals" can help new users learn the foundations of SQL queries, and will prove to be an essential reference for intermediate and advanced users. The accompanying CD-ROM contains five sample databases used for the example queries throughout the book in four different formats.

About the Author

John L. Viescas is an independent consultant with more than 40 years of experience. He began his career as a systems analyst, designing large database applications for IBM mainframe systems. He spent six years at Applied Data Research in Dallas, Texas, where he directed a staff of more than 30 people and was responsible for research, product development, and customer support of database products for IBM mainframe computers. While working at Applied Data Research, John completed a degree in business finance at the University of Texas at Dallas, graduating cum laude.

John joined Tandem Computers, Inc., in 1988, where he was responsible for the development and implementation of database marketing programs in Tandem's U.S. Western Sales region. He developed and delivered technical seminars on Tandem's relational database management system, NonStop SQL, in a geographic area spanning Hawaii to Colorado and Alaska to Arizona. John wrote his first book, A Quick Reference Guide to SQL (Microsoft Press, 1989), as a research project to document the similarities in the syntax among the ANSI-86 SQL standard, IBM's DB2, Microsoft's SQL Server, Oracle Corporation's Oracle, and Tandem's NonStop SQL. He wrote the first edition of Running Microsoft Access (Microsoft Press, 1992) while on sabbatical from Tandem. He has since written four editions of Running, two editions of Microsoft Office Access Inside Out (Microsoft Press, 2004 and 2007--the successor to the Running series), and Building Microsoft Access Applications (Microsoft Press, 2005).

John formed his own company in 1993. He provides information systems management consulting for a variety of small to large businesses around the world, with a specialty in the Microsoft Access and SQL Server database management products. He maintains offices in Nashua, New Hampshire, and Paris, France. He has been recognized as a "Most Valuable Professional" every year since 1993 by Microsoft Product Support Services for his assistance with technical questions on public support forums.

You can visit John's Web site at www.viescas.com.

Michael J. Hernandez is a veteran database developer with more than 20 years of experience developing applications for a wide variety of clients in diverse industries. Mike specializes in relational database design and is the author of the best-selling database design book Database Design for Mere Mortals, Second Edition (Addison-Wesley, 2004). He has worked with SQL throughout his career, developing applications using SQL-based databases such as Microsoft Access and Microsoft SQL Server. He has also been a contributing author and technical editor to various database-related books and periodicals.

Mike became a full-time employee at Microsoft in 2002. He initially was the Community Program Manager for the Visual Studio Tools for Office (VSTO) Team, leading and managing the team's developer community engagement efforts. In 2006, Mike became the Product Manager for VSTO, becoming responsible for helping to guide the strategic future of the product and promoting VSTO to customers and developers via a variety of venues. As he has done so often throughout his career, Mike often speaks at developer events, conferences, and user group meetings across the nation and around the world.

In a previous life, Mike had a career as a musician and performed for audiences far and wide. He attributes both his easygoing presentation style and his ability to connect with an audience to his days as a performer. Ever the musician, Mike formed a band from members of the VSTO team and gets to play his beloved guitar before new crowds and audiences. He still tinkers on his guitar quite a bit, stealing a few minutes here and there between meetings at work. Mike enjoys the little things in life, such as spending long hours at Barnes & Noble, sipping a tall Americano at Starbucks, puffing on a fine cigar, and riding his mountain bike along with his wife, Kendra.

Table of Contents

Foreword xvii

Preface xix

About the Authors xxi

Introduction xxiii

Are You a Mere Mortal? xxiii

About This Book xxiv

What This Book Is Not xxv

How to Use This Book xxvi

Reading the Diagrams Used in This Book xxvii

Sample Databases Used in This Book xxx

"Follow the Yellow Brick Road" xxxii

Part I: Relational Databases and SQL 1

Chapter 1: What Is Relational? 3

Topics Covered in This Chapter 3

Types of Databases 3

A Brief History of the Relational Model 4

Anatomy of a Relational Database 6

What's in It for You? 15

Where Do You Go from Here? 16

Summary 17

Chapter 2: Ensuring Your Database Structure Is Sound 19

Topics Covered in This Chapter 19

Why Is This Chapter Here? 19

Why Worry about Sound Structures? 20

Fine-Tuning Fields 21

Fine-Tuning Tables 30

Establishing Solid Relationships 42

Is That All? 50

Summary 51

Chapter 3: A Concise History of SQL 53

Topics Covered in This Chapter 53

The Origins of SQL 54

Early Vendor Implementations 55

". . . And Then There Was a Standard" 56

Evolution of the ANSI/ISO Standard 58

Commercial Implementations 64

What the Future Holds 65

Why Should You Learn SQL? 65

Summary 66

Part II: SQL Basics 69

Chapter 4: Creating a Simple Query 71

Topics Covered in This Chapter 71

Introducing SELECT 72

The SELECT Statement 73

A Quick Aside: Data versus Information 75

Translating Your Request into SQL 77

Eliminating Duplicate Rows 84

Sorting Information 87

Saving Your Work 92

Sample Statements 93

Summary 102

Problems for You to Solve 103

Chapter 5: Getting More Than Simple Columns 105

Topics Covered in This Chapter 105

What Is an Expression? 106

What Type of Data Are You Trying to Express? 107

Changing Data Types: The CAST Function 110

Specifying Explicit Values 112

Types of Expressions 117

Using Expressions in a SELECT Clause 128

That "Nothing" Value: Null 135

Sample Statements 139

Summary 147

Problems for You to Solve 149

Chapter 6: Filtering Your Data 151

Topics Covered in This Chapter 151

Refining What You See Using WHERE 151

Defining Search Conditions 156

Using Multiple Conditions 178

Nulls Revisited: A Cautionary Note 193

Expressing Conditions in Different Ways 197

Sample Statements 198

Summary 206

Problems for You to Solve 207

Part III: Working with Multiple Tables 211

Chapter 7: Thinking in Sets 213

Topics Covered in This Chapter 213

What Is a Set, Anyway? 214

Operations on Sets 215

Intersection 216

Difference 222

Union 228

SQL Set Operations 233

Summary 242

Chapter 8: INNER JOINs 243

Topics Covered in This Chapter 243

What Is a JOIN? 243

The INNER JOIN 244

Uses for INNER JOINs 262

Sample Statements 263

Summary 288

Problems for You to Solve 289

Chapter 9: OUTER JOINs 293

Topics Covered in This Chapter 293

What Is an OUTER JOIN? 293

The LEFT/RIGHT OUTER JOIN 295

The FULL OUTER JOIN 314

Uses for OUTER JOINs 318

Sample Statements 319

Summary 335

Problems for You to Solve 335

Chapter 10: UNIONs 339

Topics Covered in This Chapter 339

What Is a UNION? 339

Writing Requests with UNION 342

Uses for UNION 352

Sample Statements 353

Summary 365

Problems for You to Solve 366

Chapter 11: Subqueries 369

Topics Covered in This Chapter 369

What Is a Subquery? 370

Subqueries as Column Expressions 372

Subqueries as Filters 377

Uses for Subqueries 392

Sample Statements 394

Summary 409

Problems for You to Solve 410

Part IV: Summarizing and Grouping Data 413

Chapter 12: Simple Totals 415

Topics Covered in This Chapter 415

Aggregate Functions 416

Using Aggregate Functions in Filters 428

Sample Statements 431

Summary 438

Problems for You to Solve 439

Chapter 13: Grouping Data 441

Topics Covered in This Chapter 441

Why Group Data? 442

The GROUP BY Clause 444

"Some Restrictions Apply" 454

Uses for GROUP BY 458

Sample Statements 459

Summary 470

Problems for You to Solve 471

Chapter 14: Filtering Grouped Data 473

Topics Covered in This Chapter 473

A New Meaning of "Focus Groups" 474

When You Filter Makes a Difference 478

Uses for HAVING 486

Sample Statements 487

Summary 496

Problems for You to Solve 496

Part V: Modifying Sets of Data 499

Chapter 15: Updating Sets of Data 501

Topics Covered in This Chapter 501

What Is an UPDATE? 501

The UPDATE Statement 502

Uses for UPDATE 516

Sample Statements 517

Summary 533

Problems for You to Solve 534

Chapter 16: Inserting Sets of Data 537

Topics Covered in This Chapter 537

What Is an INSERT? 537

The INSERT Statement 539

Uses for INSERT 550

Sample Statements 552

Summary 562

Problems for You to Solve 563

Chapter 17: Deleting Sets of Data 567

Topics Covered in This Chapter 567

What Is a DELETE? 567

The DELETE Statement 568

Uses for DELETE 575

Sample Statements 576

Summary 583

Problems for You to Solve 584

In Closing 587

APPENDICES 589

Appendix A: SQL Standard Diagrams 591

Appendix B: Schema for the Sample Databases 60

Appendix C: Date and Time Functions 607

Appendix D: Suggested Reading 615

Index 617

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Product Details

ISBN:
9780321444431
Author:
Viescas, John L.
Publisher:
Addison-Wesley Professional
Author:
Viescas, John
Author:
Hernandez, Michael J.
Subject:
Database searching
Subject:
Sql (computer program language)
Subject:
Programming Languages - SQL
Subject:
Computer Languages-SQL
Copyright:
Edition Number:
2
Edition Description:
Trade paper
Series:
For Mere Mortals
Publication Date:
September 2007
Binding:
TRADE PAPER
Grade Level:
Professional and scholarly
Language:
English
Pages:
672
Dimensions:
9.25 x 7 x 1.347 in 1089 gr

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SQL Queries for Mere Mortals(r): A Hands-On Guide to Data Manipulation in SQL (For Mere Mortals) New Trade Paper
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$74.99 In Stock
Product details 672 pages Addison-Wesley Professional - English 9780321444431 Reviews:
"Synopsis" by , This is the eBook version of the printed book.

Over the last several decades, SQL has evolved from a language known only to computer specialists to a widely used international standard of the computer industry. The number of new applications deployed each year using SQL now totals in the millions. If you are accessing corporate information from the Internet or from an internal network, you are probably using SQL. SQL Queries for Mere Mortals will help new users learn the foundations of SQL queries, and will prove to be an essential reference guide for intermediate and advanced users.

The accompanying CD contains five sample databases used for the example queries throughout the book in four different formats: Microsoft SQL Server 2000 and later, Microsoft Access 2000 and later, MySQL version 5.0 and later, and SQL scripts that can be used with most other implementations of the language.

"Synopsis" by , "SQL Queries for Mere Mortals" can help new users learn the foundations of SQL queries, and will prove to be an essential reference for intermediate and advanced users. The accompanying CD-ROM contains five sample databases used for the example queries throughout the book in four different formats.
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