It is often quite hard to know that an update or insert statement, or DDL statement has actually happened. Data from a previous SELECT statement remains steadily there, and the only hint is to watch the right-hand corner and actually see this change from Ready to Executing to Ready - but if you miss that, even the Output window is not definitive. A status bar PER TAB - like Management Studio - including the last number of rows affected, the last execution duration IN THAT TAB, etc. would be immensely helpful.