FlexiRecord is a Ruby library for object-oriented access to databases (object-relational-mapping/ORM). Each table is represented by a class, and each row of that table is represented by an object of that class. This library is especially aimed to properly support database transactions. Currently, only PostgreSQL (version 8.2 or higher) is supported as a backend.
Lua-Sqlite3 is a binding of SQLite 3 for Lua. It is unique in contrast to other database bindings that it consists of two layers. The first layer translates the SQLite 3 implementation's C API to Lua. The second layers are interface layers, written in Lua. These layers provide a nice and smart view of the database.
ProviderFactory is an assembly for the .NET framework that provides a layer of abstraction for ADO.NET data providers. This allows programs to be developed in a way that allows for transparent database access to different ADO.NET data providers without having to change code or recompile.