Upgrading to SQL Server 2008 R2

You can upgrade instances of SQL Server 2000, SQL Server 2005 or SQL Server 2008 to SQL Server 2008 R2. Before running SQL Server Setup to upgrade to SQL Server 2008 R2, review the following topics about the upgrade process. 

In This Section

Topic

Description

Planning a SQL Server Installation

Documents installation requirements, system configuration checks run by SQL Server Setup, and security considerations for a SQL Server installation.

Version and Edition Upgrades

Documents supported upgrade paths to SQL Server 2008 R2.

Using Upgrade Advisor to Prepare for Upgrades

Describes Upgrade Advisor, a tool that analyzes instances of SQL Server 2000, SQL Server 2005, and SQL Server 2008 to identify known upgrade issues.

Upgrade How-to Topics

Provides links to procedural topics for upgrading to SQL Server 2008 R2.

Considerations for Side-by-Side Instances of SQL Server 2008 R2 and SQL Server 2008

This section describes the considerations for side-by-side installations of SQL Server 2008 R2 and SQL Server 2008.

Backward Compatibility

Lists the significant changes that might affect your applications after you upgrade to SQL Server 2008 R2.

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