SQL Ex Ru: Question 24

SELECT model FROM
(
SELECT model, Price, RANK() OVER(ORDER BY Price DESC) pos
FROM
(
SELECT model, price from PC where price = (select max(price) from PC)
UNION
SELECT model, price from Laptop where price = (select max(price) from Laptop)
UNION
SELECT model, price from Printer where price = (select max(price) from Printer)
) B
) A
WHERE pos = 1

Advertisements

Leave a comment

Filed under SQL

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s