The free Amazon app of the day is SQLTool Pro Database Editor (regularly $1.99). These free apps are a great way to add to your collection without spending a penny!
Here is some info about this one:
Connect and manage MySQL, SQL Server, PostgreSQL, Derby, Sybase, and Oracle databases from your Android device. Databases can be managed using the customized query editor or through a limited amount of built in shortcuts.
SQLTool DOES NOT connect to any web service. All connections are direct based on the information provided. SQLTool does not work with Oracle 10.2+. It will work with Oracle 10.1 and lower.
SSH Tunneling supports password and public key authentication. Private keys must be saved using OpenSSH format. The recommended strength is 2048. Keys must be saved to the SQLTool directory in the devices internal storage with the .key extension.