Practice SQL Window Functions | Xorthax's Trading Post

Tables Used

orderdetails

Column	Type
orderdetailid	bigint
orderid	bigint
productid	bigint
quantity	bigint
unitprice	double precision
currencyid	bigint

products

Column	Type
productid	bigint
name	text
description	text
category	text
price	double precision
supplierid	bigint
stockquantity	bigint

suppliers

Column	Type
supplierid	bigint
name	text
originplanet	text
contactinfo	text
rating	double precision

Expected Output

Column
supplierid
category
totalrevenue
averageprice
revenuerank
pricepercentrank

70. Supplier Performance Matrix

Rank suppliers by revenue and percent-rank their pricing within each category.

The merchants' guild wants to evaluate supplier performance by product category. Calculate the rank of suppliers based on the total revenue they generate and the percent rank of their average product price within each category.

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