# SQLAlchemy 0.6.4 Documentation

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Version: 0.6.4 Last Updated: 09/07/2010 13:07:48

# Dialects

The dialect is the system SQLAlchemy uses to communicate with various types of DBAPIs and databases. A compatibility chart of supported backends can be found at Supported Databases.

This section contains all notes and documentation specific to the usage of various backends.

## Supported Databases

These backends are fully operational with current versions of SQLAlchemy.

- Firebird
- Microsoft SQL Server
- MySQL
- Oracle
- PostgreSQL
- SQLite
- Sybase

## Unsupported Databases

These backends are untested and may not be completely ported to current versions of SQLAlchemy.

- Microsoft Access
- Informix
- MaxDB