SQL Server Compact 3.5 is a compact database for single-user client applications for all Windows platforms: Windows desktop, Mobile, and Windows Mobile 2003 for Smartphone. SQL Server Compact 3.5 is a free, easy-to-use, lightweight, and embeddable version of SQL Server 2008. It can be used to develop computer and mobile applications.

SQL Server Compact 3.5 Service Pack 1 (SP1) continues to provide new features and improvements in several areas for SQL Server Compact 3.5. For more information, see What's New in SQL Server Compact 3.5 and 3.5 SP1.

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SQL Server Compact Concepts Provides conceptual information about SQL Server Compact that includes Getting Started and Overview information, SQL Server Compact concepts, task-based How-to topics and tutorials, and troubleshooting information. Development (SQL Server Compact) Provides information about how to build and deploy SQL Server Compact and samples. Technical Reference (SQL Server Compact) Provides information about user interface reference (F1 help), managed and native programming references, SQL grammar reference, and the System.Data.SqlServerCe namespace, the managed data provider for SQL Server Compact.

General Information Installing SQL Server Compact Overview of SQL Server Compact Getting Started with Books Online (SQL Server Compact) Additional Information SQL Server Compact 3.5 Product Download SQL Server on Microsoft.com SQL Server on TechNet SQL Server Developer Center Data Access and Storage Developer Center XML Developer Center SQL Server SQL Server 2008 Books Online Download