Challenge #9: Analytics Ranking

[junsooahn]

I attached challenge # 9 by J.S.Ahn 

[junsooahn]

I attached file.

[Sujong_Han]

I am attaching my solution.

[TaekonKim]

Solution attached.

[Aravindaval]

Completed

[YoungchanPark]

Solution attached.

[adpatole]

I think I have done it in the hard way.  But it was fun working on alteryx.

[mshishido]

reposting because I lost my original solution

[Alt_Wang_Del]

i use union without expression and received the result.

[hejun]

solution