GNU Data Access is an attempt to provide uniform access to
different kinds of data sources (databases, information
servers, mail spools, etc).
It is a complete architecture that provides all you need to
access your data.
libgda was part of the GNOME-DB project
(http://www.gnome-db.org/), but has been
separated from it to allow non-GNOME applications to be
developed based on it.
Drivers for the supported databases are included in the gda2.0-* packages.