Query most recent TWO entries per widget

Question

I have two tables. One (Widgets) has a list of widgets (ID, widget_name, color, etc...) and data about them. The other one (Tests) has a list of tests run on the widgets (ID, d

Answer 1

If you need the two most recent tests overall, then

Select * From Tests T
Where (Select Count(*) From tests
       Where testDate > T.TestDate) < 2

If you need the two most recent tests for each Widget, then

Select * From Tests T
Where (Select Count(*) From tests
       Where WidgetId = T.WidgetId 
           And testDate > T.TestDate) < 2