Practice SQL Window Functions | Xorthax's Trading Post

Tables Used

customers

Column	Type
customerid	bigint
name	text
species	text
contactinfo	text
loyaltystatus	text
joindate	text

orders

Column	Type
orderid	bigint
customerid	bigint
orderdate	timestamp without time zone
totalamount	double precision
status	text

Expected Output

Column
species
totalrevenue
revenuetier

40. Species Revenue Classifications

Rank species into 5 tiers based on total spending at Xorthax's post.

Xorthax wants to rank different species into 5 tiers based on their total revenue at his trading post. Write a query to assign tiers to species based on their total spending.

Write Your Query