database - Which file based DBMS should I support in an open source project? -

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I am working on an open source project which can use many DBMS as backend. So far, we support SQL Server 2005 and SQL Server 2008, but we would also like to support some additional databases including some file-based DBSs.

Note: File based databases should work on 64-bit platforms, so MS Access is not an option because there is no 64-bit provider AFAIK.

Which DBMS database-based open source project should support your opinion?

, of course.


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