guile-dbi provides a simple, generic, easy-to-use guile scheme interface to SQL databases, such as Postgres, MySQL or SQLite3.

The system is 'generic' in the sense that the same programming interface (front end) can be used with different databases. The DBI (database independent) part provides the scheme interfaces. The DBD (database dependent) plugins connect to an actual SQL server. Currently, there are DBD back-ends for Postgres, MySQL and SQLite3. Creating additional DBD back-ends requires a small amount of C coding, but is a straightforward task.