SourceForge.net: jTDS - SQL Server and Sybase JDBC driver

Open source JDBC 3.0 Type 4 driver for Microsoft SQL Server (6.5, 7.0, 2000 and 2005) and Sybase. jTDS is the fastest JDBC driver for MS SQL Server and is a complete implementation of the JDBC spec. For more information see http://jtds.sourceforge.net/