SQL Server 2008, the latest release of Microsoft SQL Server, provides a comprehensive data platform. Books Online is the primary documentation for SQL Server 2008.
Books Online includes the following types of information:
- Setup and upgrade instructions.
- Information about new features and backward compatibility.
- Conceptual descriptions of the technologies and features in SQL Server 2008.
- Procedural topics describing how to use the various features in SQL Server 2008.
- Tutorials that guide you through common tasks.
- Reference documentation for the graphical tools, command prompt utilities, programming languages, and application programming interfaces (APIs) that are supported by SQL Server 2008.
- Descriptions of the sample databases and applications that are available with SQL Server 2008.
Reference : Pinal Dave (http://blog.SQLAuthority.com)