Conventions Used in This Book

This book uses different typefaces to differentiate between code and regular English, and also to help you identify important concepts.

Text that you type and text that should appear on your screen is presented in monospace type. It looks like this to mimic the way text looks on your screen.

Placeholders for variables and expressions appear in monospace italic font. You should replace the placeholder with the specific value it represents.

This arrow () at the beginning of a line of code means that a single line of code is too long to fit on the printed page. Continue typing all the characters after the as though they were part of the preceding line.

Note

A Note presents interesting pieces of information related to the surrounding discussion.

Tip

A Tip offers advice or teaches an easier way to do something.

Caution

A Caution advises you about potential problems and helps you steer clear of disaster.

New Term

A New Term box provide clear definitions of new, essential terms.

• Input

The Input icon identifies code that you can type in yourself. It usually appears next to a listing.

• Output

The Output icon highlights the output produced by running MySQL code. It usually appears after a listing.

• Analysis

The Analysis icon alerts you to the author's line-by-line analysis of input or output.