According to the document http://www-01.ibm.com/support/knowledgecenter/SSYMRC_5.0.0/com.ibm.jazz.install.doc/topics/t_s_server_installation_setup_sql.html,you need to
- download sqljdbc4.jar to CLM server
- and create "SQLSERVER_JDBC_DRIVER_FILE" environment variable on the server