Mysql your visual blueprint for creating open source databases- P1 pdf

MySQL ™TM ® From & Your visual blueprint™ to open source database management by Michael Moncur... Library of Congress Control Number: 2002110260 ISBN: 0-7645-1692-2 Manufactured in the U

MySQL ™

TM

®

From

&

Your visual blueprint™ to open source database management

by Michael Moncur

Published by

Wiley Publishing, Inc.

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New York, NY 10022

Published simultaneously in Canada

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CREDITS

ACKNOWLEDGMENTS

Michael Moncur is the author of many books on system administration and Web development topics.

He has recently written books about JavaScript and DHTML He works as an independent network consultant and Web programmer

Michael also manages and maintains several popular Web sites His oldest and most popular site, The Quotations Page, has been online since 1994 Most of the site's content is stored in a MySQL database, and presented using PHP Michael lives with his wife, Laura, in a suburb of Salt Lake City, Utah

I am continually amazed at how complicated it is to write and publish a computer book Fortunately, a great deal of this complexity was handled smoothly by the team at Wiley This began with Jen Dorsey, the acquisitions editor, who was instrumental in getting the project started and keeping it running smoothly The project editor, Sarah Hellert, communicated with me constantly, managed every detail of the production, and helped me figure out the intricacies of the visual format I have grown to love The copy editor, Jill Mazurczyk, saved me from many embarrassing errors and kept the style consistent The technical editor, Scott Hofmann, painstakingly tested all of the examples, helped me avoid technical errors, and made some valuable suggestions about content and coverage Thanks are also due to the many people in the graphics and production departments who handled the final details

I'd also like to thank Neil Salkind at Studio B, for his help in getting this project lined up and keeping it going, and David and Sherry Rogelberg, Jessica Richards, and the rest of the team at Studio B Finally, thanks to my wife, Laura, and the rest of my friends and family

ABOUT THE AUTHOR

AUTHOR'S ACKNOWLEDGMENTS

Dedicated to my wife, Laura, my parents, and everyone else who sees less of me while I'm busy writing.

HOW TO USE THIS BOOK XIV 1) INTRODUCING MYSQL

Understanding MySQL .2

MySQL Terminology .4

Other Database Systems .5

Structured Query Language (SQL) .6

Download MySQL .8

Install MySQL under Linux from a Package 10

Install MySQL under UNIX from Source .12

Install MySQL under Windows .14

Start the MySQL Server .16

Test the MySQL Installation 17

Using the MySQL Monitor .18

View the Server Status .20

Try an SQL Query .21

Configure a MySQL User .22

Specify a Multiple-Line Query .24

Edit a Long Command .26

Configure MySQLGUI .28

2) MANAGE DATABASES AND TABLES Design a Database .30

Create and Drop Databases .32

Create a Database 33

Show Available Databases .34

Select a Database .35

Create and Drop Tables .36

Create a Simple Table 38

Show Table Information .40

Numeric Column Types .42

Text and Date Column Types 44

Using Text Columns .46

Using Sets and Enumerations .48

Create an Indexed Table .50

Delete Tables and Databases 52

TABLE OF CONTENTS

3) MODIFY TABLES

Using ALTER TABLE Queries 54

Add a Column to a Table .56

Add an Index .58

Add a Primary Key or Unique Index .60

Add a Timestamp Column .62

Add an Auto-Increment Column .64

Rename a Column .66

Change a Column Type .68

Delete a Column 70

Delete an Index or Primary Key .72

Rename a Table .74

Change a Table Type 75

4) ADD AND DELETE DATA Using INSERT and DELETE Queries 76

Add a Row to a Table .78

Specify Columns for a New Row .80

Specify Insert Priority .81

Using Auto-Increment Columns .82

Using Timestamp Columns .84

Replace an Existing Row 86

Insert Rows from Another Table .88

Delete a Specific Row .90

Delete All Table Rows 92

Limit the Number of Deleted Rows .93

Delete Data by Date 94

5) UPDATE DATA IN TABLES Using UPDATE Queries 96

Modify a Single Row 98

Modify Multiple Rows .100

Update All Table Rows .102

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BOOK TITLE:

Your visual blueprint forthest

of the book title

MYSQL:

Your visual blueprint to open source database management

Limit the Number of Rows to Update .103

Update Multiple Columns .104

Update Depending on Column Values 106

Increment a Column Value .108

6) USING SELECT QUERIES Using SELECT Queries .110

Display Data with SELECT .112

Using the WHERE Clause .114

Specify Multiple WHERE Conditions .116

Using the LIMIT Clause .118

Sort Data with the ORDER BY Clause .120

Using the GROUP BY Clause .122

Using Multiple Clauses with SELECT .123

Count Database Rows .124

Calculate Totals and Averages .126

Display Data from Multiple Tables .128

Using JOIN Options .130

Display Data with MySQLGUI .132

7) USING MYSQL FUNCTIONS Math Functions .134

Using Math Functions 136

Compare Numeric Values .138

Understanding String Functions .140

Compare String Values .142

Using String Functions .144

Work with Substrings .146

Understanding Date and Time Functions .148

Work with Dates and Times .150

Display Formatted Dates .152

Add and Subtract Dates and Times .153

Miscellaneous Functions .154

TABLE OF CONTENTS

8) IMPORT AND EXPORT DATA

Import and Export Tools .156

Export to a Text File with SELECT .158

Format an Import File 160

Import from a Text File 162

Export Data from a Spreadsheet 164

Export Data from Microsoft Access .166

Back up Data from a Table 168

Restore a Backup File .169

Manage Automated Backups .170

Back up Table Structure .172

Create a Copy of a Table .173

9) MANAGE THE MYSQL SERVER MySQL Administration Tools .174

Check Server Status .176

Check the MySQL Server Version 177

Start and Stop the MySQL Server under UNIX .178

Start and Stop the MySQL Server Under Windows .180

View and Manage Running Processes .182

Using WinMySQLadmin .184

Manage MySQL with MySQLGUI .186

10) OPTIMIZE AND TROUBLESHOOT MYSQL Optimize MySQL .188

Check a Table for Errors 190

Optimize and Repair Tables 192

MySQL Configuration Options .194

Display Server Performance Information 196

Edit the Configuration File in UNIX .198

Edit the Configuration File in Windows .199

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MYSQL:

Your visual blueprint to open source database management

TABLE OF CONTENTS

View MySQL Log Files .200

Improve Performance with Indexes .202

Manage Table Locking .204

11) CONFIGURE MYSQL SECURITY The Importance of Security .206

MySQL Security Basics .207

Grant Privileges to Users .208

Modify User Passwords .210

View a User's Privileges .212

View Security Tables 214

Control Network Access .216

Advanced MySQL Security .217

12) USING MYSQL WITH PHP Introducing PHP .218

Test the PHP Installation .220

Install and Test phpMyAdmin .222

Manage Data with phpMyAdmin .224

Manage the MySQL Server with phpMyAdmin 226

Connect to a MySQL Server .228

Display Query Results .230

Store Query Results as Objects 232

Insert a Record from PHP .234

Delete Records Using PHP 236

Create a Form to Add Records .238

Create a Database Search Form .240

13) USING MYSQL WITH PERL Introducing Perl 242

Install Perl under UNIX 244

Install Perl under Windows .246

MYSQL:

Your visual blueprint to open source database management

Install the Perl DBI .248

Install the MySQL DBD .249

Connect to a MySQL Server .250

Display Query Results .252

Insert a Record from Perl .254

Delete Records Using Perl .255

Work with Web Forms .256

APPENDIX A Glossary 258

APPENDIX B Create and Delete Tables and Databases 260

Modify Tables with ALTER TABLE .262

Add and Delete Data .263

Modify Existing Data with UPDATE 264

Retrieve Data with SELECT .265

Display Status Information .266

Administrative Commands 267

Command-Line Utilities .268

APPENDIX C What's on the CD-ROM 270

Using the E-Version of this Book 272

Wiley Publishing Inc End User License Agreement 274

GNU General Public License 276

INDEX 280

HOW TO USE THIS BOOK

MySQL: Your visual blueprint to open source database

management uses simple, straightforward examples to

teach you how to create powerful and dynamic programs

To get the most out of this book, you should read each

chapter in order, from beginning to end Each chapter

introduces new ideas and builds on the knowledge

learned in previous chapters When you become familiar

with MySQL: Your visual blueprint to open source database

management, you can use this book as an informative

desktop reference

Who This Book Is For

If you are interested in creating databases, applications,

and data-driven Web sites using MySQL, MySQL: Your

visual blueprint to open source database management is

the book for you

This book introduces you to the SQL language that

forms the foundation of MySQL as well as the specific

commands, utilities, and features unique to MySQL It

also covers the use of MySQL with the popular PHP and

Perl languages for creating dynamic, database-backed Web

pages

Although this book requires no prior experience with

databases or SQL, a basic familiarity with either Windows

or UNIX servers is an asset

What You Need to Use This Book

To perform the tasks in this book, you need a computer to

run the MySQL server This can be either a machine

running Windows 98, ME, NT, 2000, or XP; or a machine

running a UNIX-based operating system such as Linux

The MySQL server software is available at no charge, and

installing it on your system is detailed in Chapter 1

The Conventions in This Book

A number of typographic and layout styles have been used

throughout MySQL: Your visual blueprint to open source database management to distinguish different types of

information

Courier Font

Indicates the use of MySQL commands, command-line utilities, HTML tags and attributes, and commands in PHP

or Perl

Bold

Indicates information that you must type

Italics

Indicates a new term

An Apply It section usually contains a segment of code that takes the lesson you just learned one step further Apply It sections offer inside information and pointers that you can use to enhance the functionality of your code

An Extra section provides additional information about the task you just accomplished Extra sections often contain interesting tips and useful tricks to make working with MySQL easier and more efficient

Please note that the majority of the tasks in this book are performed using the MySQL monitor Chapter 1 explains how to start the MySQL monitor The tasks in later chapters assume that the reader knows how to start the monitor or another MySQL client