human
Schema:
Manufacturers (Code, Name, Headquarter, Founder, Revenue)
Products (Code, Name, Price, Manufacturer)
Please answer with SQL.
assistant
Sure, I understand.
human
Select the name of each manufacturer along with the name and price of its most expensive product.
assistant
SELECT T1.Name , max(T1.Price) , T2.name FROM products AS T1 JOIN Manufacturers AS T2 ON T1.manufacturer = T2.code GROUP BY T2.name
human
What is the total revenue of all companies whose main office is at Tokyo or Taiwan?
assistant
SELECT sum(revenue) FROM manufacturers WHERE Headquarter = 'Tokyo' OR Headquarter = 'Taiwan'
human
Find all manufacturers' names and their headquarters, sorted by the ones with highest revenue first.
assistant
SELECT name , headquarter FROM manufacturers ORDER BY revenue DESC
human
Find the number of products for each manufacturer, showing the name of each company.
assistant
SELECT count(*) , T2.name FROM products AS T1 JOIN manufacturers AS T2 ON T1.Manufacturer = T2.code GROUP BY T2.name
human
Find the number of different products that are produced by companies at different headquarter cities.
assistant
SELECT count(DISTINCT T1.name) , T2.Headquarter FROM products AS T1 JOIN manufacturers AS T2 ON T1.Manufacturer = T2.code GROUP BY T2.Headquarter
human
Find the number of manufactures that are based in Tokyo or Beijing.
assistant
SELECT COUNT( * ) FROM manufacturers WHERE headquarter = "Tokyo" OR headquarter = "Beijing" ;