To import from an Oracle Db, click the "Oracle" button button from the Databases category, as shown below:

Please note that Oracle client should be installed. 




Next, you will need to enter either IP Address, Port and server name.


Example:

IP = 172.12.123.2

Port =  5656

Server Name = wpserver


So the connection string would be: 172.12.123.2:5656/wpserver


Once connected you can then select the database and table name. 

Click the "Import" to complete the importing.


You can use the Load and Save options to open and store the database credentials.