MQL and Databases

Does anybody know of a way to connect to a database from MT4? I imagine it would need to be an external DLL as it doesn't look like there is a data access laryer built in to MQL but it shouldn't be that hard to put together. But before I do it, I wondered it here is one out there already somewhere. What I had in mind was a Generic ODBC or OLEDB connection type of thing so it could be used with multiple DBMS's.

MT4-ODBC Bridge
https://github.com/onagano/mt4-odbc-bridge
This is a library for the popular trading terminal, MetaTrader4 (MT4), to give access to a relational database through ODBC interface. The main features are as follows.

1. Recording price data
2. Synchronizing trade status
3. Executing orders

MT4 has its own programming language, MQL4, for algorithmic trading. Though it is easy to learn, its expressiveness is very limited. People who want to execute more sophisticated algorithm tend to resort to outside of MT4, typically using DLL. But the native programming of DLLs is restricted to the Windows platform, which is not familiar to mainstream programmers of the recent open source movement.
MT4-ODBC Bridge (MOB in short) provides a buffer area onto a RDBMS like MySQL, PostgreSQL, SQLite, etc. Such database is general enough for the most open source programmers. You can access to the database by your familiar language, or maybe directly by SQL.