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Get to know the data
3. The Purchase table
Get to know the OVER() clause
Computations with OVER()
Aggregate functions with OVER()
Using OVER() with WHERE


Fine. The last table is called Purchase. Let's look at it.


Select all the information from the table Purchase.

This table keeps track of all items that are purchased by the departments. It contains the Id of the purchase, the ID of the department, the Name of the purchased item, and the Price paid.