Contains comprehensive descriptions of every SQL and Stored Procedure Language (SPL) statement, plus extensive SQL syntax coverage not included in the first edition. Softcover.
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The indispensable reference to the Informix implementation of SQL-updated for the new Informix Dynamic Server.2000 and Informix Enterprise Decision Server!
Completely updated to reflect the new Informix Dynamic Server.2000 and Informix Enterprise Decision Server, this is the most authoritative guide to the Informix implementation of SQL! The Informix Guide to SQL: Reference and Syntax, Second Edition contains comprehensive descriptions of every SQL and Stored Procedure Language (SPL) statement, plus extensive SQL syntax coverage not included in the first edition. Detailed syntax diagrams walk you through every clause of each SQL statement, and syntax tables explain the input parameters for each clause. Coverage includes:
You'll find thorough usage instructions, pertinent examples, and extensive references torelated documentation, as well as a detailed glossary of object-relational terminology. If you develop database solutions with Informix technology, you can't afford to be without this reference.
Introduction to the Reference Section
In This Introduction
This Introduction provides an overview of the information in this book and describes the conventions it uses.
About This book
This book includes information about system catalog tables, data types, and environment variables that Informix products use. It also includes a glossary that contains definitions of common terms found in Informix documentation and a description of the demonstration databases that Version 9.2 of Informix Dynamic Server 2000 and Version 8.3 of Informix Enterprise Decision Server provide.
This book is one of a series of books that discusses the Informix implementation of SQL. Section Two of this book, Syntax, contains all the syntax descriptions for SQL and stored procedure language (SPL). The Informix Guide to SQL: Tutorial, Second Edition shows how to use basic and advanced SQL and SPL routines to access and manipulate the data in your databases.The Informix Guide to Designing Databases and Data Warehouses shows how to use SQL to implement and manage your databases.
Types of Users
This book is written for the following users:
This book assumes that you have the following background:
If you have limited experience with relational databases, SQL, or your operating system, refer to the Getting Started manual for your database server for a list of supplementary titles.
This book assumes that you are using one of the following database servers:
Assumptions About Your Locale
Informix products can support many languages, cultures, and code sets. All culture-specific information is brought together in a single environment, called a Global Language Support (GLS) locale.
This book assumes that you use the U.S. 8859-1 English locale as the default locale. The default is en_us.8859-1 (ISO 8859-1) on UNIX platforms or en_us.1252 (Microsoft 1252) for Windows NT environments. This locale supports U.S. English format conventions for dates, times, and currency, and also supports the ISO 8859-1 or Microsoft 1252 code set, which includes the ASCII code set plus many 8-bit characters such as é, è, and ñ.
If you plan to use nondefault characters in your data or your SQL identifiers, or if you want to conform to the nondefault collation rules of character data, you need to specify the appropriate nondefault locale.
For instructions on how to specify a nondefault locale, additional syntax, and other considerations related to GLS locales, see the Informix Guide to GLS Functionality.
The DB-Access utility, which is provided with your Informix database server products, includes one or more of the following demonstration databases:
For information about how to create and populate the demonstration databases, see the DB-Access User's Manual. For descriptions of the databases and their contents, see this manual.
The scripts that you use to install the demonstration databases reside in the $INFORMIXDIR/bin directory on UNIX platforms and in the %INFORMIXDIR%\bin directory in Windows environments.
For a comprehensive list of new database server features, see the release notes. This section lists new features relevant to this book.
New Features in Version 8.3
This book describes the DBCENTURY environment variable, which is a Year 2000 compliance feature in Version 8.3 of Enterprise Decision Server.
New Features in Version 9.2
This book describes new features in Version 9.2 of Dynamic Server. The features fall into the following areas:
Year 2000 Compliance
This book describes the DBCENTURY environment variable in Version 9.2 of Dynamic Server.
Version 9.2 Features from Dynamic Server 7.30
This book also describes the IFX_UPDDESC environment variable, which was first released in Version 7.30.
For additional information, you might want to refer to the following types of documentation:
An Answers OnLine CD that contains Informix manuals in electronic format is provided with your Informix products. You can install the documentation or access it directly from the CD. For information about how to install, read, and print on-line manuals, see the installation insert that accompanies Answers OnLine.
Informix on-line manuals are also available on the following Web site:
To order printed manuals, call 1-800-331-1763 or send email to firstname.lastname@example.org. Please provide the following information when you place your order:
Error Message Documentation
Informix software products provide ASCII files that contain all of the Informix error messages and their corrective actions.
To read error messages and corrective actions on UNIX, use one of the following utilities.
|finderr||Displays error messages on line|
|rofferr||Formats error messages for printing|
To read error messages and corrective actions in Windows environments, use the Informix Find Error utility. To display this utility, choose Start?Programs?Informix from the Task Bar.
Instructions for using the preceding utilities are available in Answers OnLine. Answers OnLine also provides a listing of error messages and corrective actions in HTML format.
Documentation Notes, Release Notes, Machine Notes
In addition to printed documentation, the following sections describe the on-line files that supplement the information in this book. Please examine these files before you begin using your database server. They contain vital information about application and performance issues.
On UNIX platforms, the following on-line files appear in the $INFORMIXDIR/release/en_us/0333 directory. Replace x.y in the filenames with the version number of your database server.
|SQLRDOC_x.y||The documentation notes file for your version of this book describes topics that are not covered in the book or that were modified since publication.|
|SERVERS_x.y||The release notes file describes feature differences from earlier versions of Informix products and how these differences might affect current products. This file also contains information about any known problems and their workarounds.|
|IDS_x.y or IDS_EDS_x.y||The machine notes file describes any special actions that you must take to configure and use Informix products on your computer. Machine notes are named for the product described.|
The following items appear in the Informix folder. To display this folder, choose Start->Programs->Informix from the Task Bar.
|Documentation Notes||This item includes additions or corrections to manuals and information about features that might not be covered in the manuals or that have been modified since publication.|
|Release Notes||This item describes feature differences from earlier versions of Informix products and how these differences might affect current products. This file also contains information about any known problems and their workarounds.|
The machine notes do not apply to Windows environments.
For a list of publications that provide an introduction to database servers and operating-system platforms, refer to your Getting Started manual.
Compliance with Industry Standards
The American National Standards Institute (ANSI) has established a set of industry standards for SQL. Informix SQL-based products are fully compliant with SQL-92 Entry Level (published as ANSI X3.135-1992), which is identical to ISO 9075:1992. In addition, many features of Informix database servers comply with the SQL-92 Intermediate and Full Level and X/Open SQL CAE (common applications environment) standards.
Informix Welcomes Your Comments
Let us know what you like or dislike about our books. To help us with future versions of our books, we want to know about any corrections or clarifications that you would find useful. Include the following information:
Send electronic mail to us at the following address:
The doc alias is reserved exclusively for reporting errors and omissions in our documentation.
We appreciate your suggestions.
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