Environment:
Microsoft SQL Server 2008
Oracle Database 11.2 on Linux 32-bit
SQL Developer 3.2
Download driver for JDBC.
http://www.oracle.com/technetwork/developer-tools/sql-developer/thirdparty-095608.html
Tools Menu --> Preferences --> Database -->Third Party JDBC Drivers -->
add Entry --> C:\jdbc\jtds-1.2.jar
