Free SQL books

Sams Teach Yourself SQL in 24 Hours
This is a free sql book from Sams Reference Library. Sams Teach Yourself SQL in 24 Hours, Third Edition presents the key features of SQL (Structured Query Language) in an easy to understand format with updated code examples, notes, diagrams, exercises, and quizzes. New material covers more information.

Backup and Recovery Best Practices for Microsoft SQL Server 2005

To help you choose from among the available configuration options and backup and recovery procedures, HP has conducted extensive laboratory tests to determine best practices. This paper discusses those test results so that users can understand the options and the limitations of implementing backup and recovery using Linear Tape-Open (LTO) tape, disk-to-disk, and virtual tape devices. The audience for this paper is HP users in an enterprise environment currently running or planning to run SQL Server 2005. (For visitors from USA only.)

High availability for SQL Server 2005

Array-based remote replication solutions for Microsoft SQL Server have existed for years, and SQL Server 2005 provides a built-in, host-based feature called database mirroring as an alternative for disaster-recovery solutions. Although these technologies are widely available, users may lack the information needed to select the replication, mirroring, or high availability method(s) suitable for their environment; they need information on how to configure the database, storage, and software. (For visitors from USA only.)

SQL for Web Nerds
This is a free online sql book by Philip Greenspun. It covers topics - data modeling, simple queries, complex queries, transactions, triggers, views, style, PL/SQL and Java, trees, handling dates in Oracle, limits in Oracle, tuning, data warehousing, foreign and legacy data and normalization.

Structured Query Language (SQL): a Practical Introduction
This is a good introductory text for learning SQL. There is no simpler text for learning the syntax and structure of SQL. Download it for free.

Sams Teach Yourself Microsoft SQL Server 7 in 21 Days
This is a free sql server book from Sams Reference Library. Sams Teach Yourself Microsoft SQL Server 7 in 21 Days gives you the new features and capabilities of SQL Server 7, in a tutorial environment.

Essential SQL
This is a bonus chapter provided with Mastering Delphi 6. It is a basic introduction to SQL.