1 In other words, once we have our x scale, we also know our y scale for a map segment. 2  Rhumb lines are straight segments-The easiest way to understand a rhumb line is to imagine you are sailing a ship. 3  If you point your ship on a compass heading and go forward, you are traveling a rhumb line.
â¢ QUALIFYING (noun). The noun QUALIFYING has 2 senses: 1. the grammatical relation that exists when a word qualifies the meaning of the phrase. 2. success in satisfying a test or requirement. Familiarity information: QUALIFYING used as a noun is rare. Dictionary entry details.
With qualify, identical expressions are allowed before and after the qualify step, but they give different results with and without the qualify clause. Your explanation of what the query with qualify means isn't clear. Windowed functions aren't allowed in the WHERE clause because they can lead to ambiguity or at least surprise (row numbers not starting at 1, for example), so defining QUALIFY in terms of a disallowed WHERE clause doesn't resolve the problem.