About This Guide

The QNX Database (QDB) Developer's Guide accompanies the QDB database server and is intended for application developers.

This table may help you find what you need in this book:

For information about: See:
QDB Overview Introduction
QDB command-line options Starting QDB
Executing SQL statements from the command-line QDB Client utility (qdbc)
Managing a database QDB Administration
Sample application QDB Example
Supported data types QDB Datatypes
Op codes QDB Op Codes
Writing your own SQL or collation functions Writing User-Defined Functions
Client API QDB API reference
SQL commands SQL reference

Typographical conventions

Throughout this manual, we use certain typographical conventions to distinguish technical terms. In general, the conventions we use conform to those found in IEEE POSIX publications. The following table summarizes our conventions:

Reference Example
Code examples if( stream == NULL )
Command options -lR
Commands make
Environment variables PATH
File and pathnames /dev/null
Function names exit()
Keyboard chords Ctrl-Alt-Delete
Keyboard input something you type
Keyboard keys Enter
Program output login:
Programming constants NULL
Programming data types unsigned short
Programming literals 0xFF, "message string"
Variable names stdin
User-interface components Cancel

We use an arrow (→) in directions for accessing menu items, like this:

You'll find the Other... menu item under Perspective-->Show View.

We use notes, cautions, and warnings to highlight important messages:

Note: Notes point out something important or useful.

Caution: Cautions tell you about commands or procedures that may have unwanted or undesirable side effects.

WARNING: Warnings tell you about commands or procedures that could be dangerous to your files, your hardware, or even yourself.

Note to Windows users

In our documentation, we use a forward slash (/) as a delimiter in all pathnames, including those pointing to Windows files.

We also generally follow POSIX/UNIX filesystem conventions.

Technical support

If you have any questions, comments, or problems with a QNX product, please contact Technical Support. For more information, see the How to Get Help chapter of the Welcome to the QNX Software Development Platform guide or visit our website, www.qnx.com.

Copyright © 2006–2018, QNX Software Systems Limited, a subsidiary of BlackBerry Limited. All rights reserved.