A few years ago I took an Oracle database class at a university. I remember running SQL commands to perform a number of DBA tasks, such as creating databases, creating tables, creating procedures, altering tables, etc. via the command line. But in order to complete these tasks, we had to connect to the university's UNIX server via SSH. I remember using a nifty ssh client application. I found a link to its website while browsing my old coursework archive. At the time, I downloaded the "university use" copy, which was free, and it worked pretty well for the course.
Per the vendor's website, you can still download their SSH Secure Shell 3.2 non-commercial source code and there is also a Windows Client executable. Both are free of charge from various anonymous ftp sites around the globe for purposes of EVALUATION, NON-COMMERCIAL USE, and UNIVERSITY USE as defined in their license agreement.
Here is the link to the SSH Secure Shell for Workstations.
Other suggestions are always welcome.