After clicking the OK button, NetBeans may ask us to select a database schema.
After selecting the schema and clicking the OK button, our database is shown in
the list of databases in the Services tab. We can connect to it by right-clicking on
it, selecting Connect from the resulting pop-up, then entering our username and
password for the database (if we chose not to allow NetBeans to "remember" the
password when we added the database).
We have now successfully connected NetBeans to a third party RDBMS.