I am working on a relational algebra questions, and got stock on this one . I How to write a relational algebra that can retrieve the ids of the most expensive shoes from these tables?
Shoes(id, name, size)
Sells(storename, id, price)
I would be very thankful, if you could provide me with your assistance.
SELECT id FROM sells WHERE price = ( something else goes here )
we normally do not solve homework assignments for people
you need to give it a try yourself, and we will tell you if you're on the right track