Did you know it is possible to use ORM over NoSQL engines? This blog post describes how mORMot is able to translate a regular SQL "where" clause to a well-formatted MongoDB query object, so that you could share the same business code with RDBMS (FireBird/Oracle/MSSQL/SQLite3/PostgreSQL...) or MongoDB, at runtime.

Did you know it is possible to use ORM over NoSQL engines? This blog post describes how mORMot is able to translate a regular SQL "where" clause to a well-formatted MongoDB query object, so that you could share the same business code with RDBMS (FireBird/Oracle/MSSQL/SQLite3/PostgreSQL...) or MongoDB, at runtime.
http://blog.synopse.info/post/2014/11/28/ODM-magic%3A-complex-queries-over-NoSQL-/-MongoDB