What is the difference between ‘Single Output’ and ‘One Port for Each Action’ in Source Diff Processor?

In the Source Diff Processor, if you select the Single Port option, the database action, such as INSERT, UPDATE, SKIP, or ERROR, will be chosen by the Database Write Strategy’s logic rather than specified by the user. Whereas, if you select One Port for Each Action, you will get a separated node for each Diff action (INSERT, UPDATE, SKIP, or ERROR).