jTDS

Open source 100% pure Java type 4 JDBC 3.0 driver for Microsoft SQL Server and Sybase Adaptive Server Enterprise. Based on FreeTDS and described as the fastest production-ready JDBC driver for these databases. Fully JDBC 3.0 compatible with support for scrollable and updateable ResultSets, concurrent statements, and complete DatabaseMetaData and ResultSetMetaData implementations. Recommended for use with Hibernate, JBoss, and database management tools like DbVisualizer and SQuirreL SQL.