SQLNinja is a tool that can assist in performing SQL injection tests on web applications that use Microsoft SQL server on their backend. Written in Perl.
You can download it from the following link: https://packetstormsecurity.com/files/download/48157/sqlninja-0.1.0alpha.tgz
Source: https://packetstormsecurity.com/files/48157/sqlninja-0.1.0alpha.tgz.html