Drivers
Config for Microsoft SQL
This need the jtds-1.3.1.jar driver in the "lib" directory (and a possible restart of JIRA)
<Resource name="NAVISIONdb" auth="Container" type="javax.sql.DataSource" username="readonly" password="******" driverClassName="net.sourceforge.jtds.jdbc.Driver" url="jdbc:jtds:sqlserver://mssql01.server.dk:1433/navision" maxActive="20" maxIdle="10" validationQuery="select 1" />
Reference
http://www.kepler-rominfo.com/pages/solutions/jira-plugins/database-custom-field