An open source
programming library that is a reimplementation of the Tabular Data Stream
protocol, used in place of db-lib or ct-lib libraries. FreeTDS allows different open source applications such as Perl
(or your own C or C++
program) to connect to Sybase or Microsoft SQL
Server. FreeTDS consists of two projects. The FreeTDS C libraries which supports supports db-lib, ct-lib, and ODBC, and FreeTDS/ JDBC which is a native Java
implementation of a Type 4 JDBC driver.