Structured Query Language
Publisher: Wikibooks 2011
Structured Query Language (SQL) is a widely-used query language for using database. This Wikibook provides a detailed description of SQL, its origins, its programming, and its uses. This book follows the specifications of the SQL:2008 standard published in 2008 by the ISO.
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In this SQL tutorial, you will learn how to use the SQL language to: Store, retrieve and manipulate data in SQL server; Select, insert, update and delete rows in SQL tables; Create database and tables in SQL server and all other SQL concepts.
by Rahul Batra - dreamincode.net
This is a short e-book teaching the basics of SQL assuming no prior knowledge of it. While the examples and text use Ingres as the database management system, the code should work correctly on any SQL compliant database.
by Akeel I. Din - NCC Blackwell
Introductory text for learning SQL, it shows you how to use the language with crystal-clear explanations and examples. For more advanced and vendor-specific topics (triggers, stored procs, etc.) you'll need to look at the vendor's documentation.
This book is a compact comparative reference for several SQL language dialects. It lists particular common tasks and problems resolved in terms of several SQL server implementations. When possible, it tries to emphasize an universal solution.