What is a good lightweight database that can be used for an ASP.NET MVC application?

I need lightweight database for an ASP.NET MVC application.

• would prefer not to install anything additional on the 开发者_运维问答host box
• would also prefer being a little more robust than XML
• would like to use activerecord or entity frameworks

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SQL Server Compact Edition claims to have an "XCopy" installation (copy and run), and it would have the fewest integration headaches.

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You can check sqlite

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• Sqlite http://www.sqlite.org/
• visadb http://www.vistadb.net/

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Firebird can do the job well

The embedded version is an amazing variation of the server. It is a fully featured Firebird server packed in just a few files. It is very easy to deploy, since there is no need to install the server.