jTDS is an open source 100% pure Java (type 4) JDBC 3.0 driver for Microsoft SQL
Server (6.5, 7, 2000 and 2005) and Sybase (10, 11, 12). jTDS is based on the
work of the FreeTDS project and is currently the fastest complete JDBC driver
for SQL Server and Sybase. Starting with release 0.9 jTDS is 100% JDBC 3.0
compatible, supporting forward-only and scrollable/updateable ResultSets,
multiple concurrent (completely independent) Statements per Connection and
implementing all the DatabaseMetaData and ResultSetMetaData methods.