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Window Functions in MS SQL Server

Introduction
The Final Quiz
11. Question 8
You’ve Completed the Windows Function Course!

Instruction

Superb! How about Question 8?

Exercise

For each treatment, show the following information: TreatmentDate, Name, Price, the TreatmentDate of the most recent treatment in the same category, and that treatment's Price. Show the last two columns as MostRecentDate and MostRecentPrice.