You can also select (highlight) the portion of the query you wish to execute. If you execute and only a portion of the query is selected, only the selected portion is executed.
I'm on Oracle 11g Release 11.2.0.3.0 and PL/SQL Developer 11.0.4.1174 01.94787.
When I Start debugger (F9) on a packaged procedure in one oracle environment, it just hangs up. I can start the debugger on the same procedure in another oracle environment and it works fine, just like the...