CREATE TABLE Products (Code INT, Name VARCHAR, Price DECIMAL, Manufacturer INT)
CREATE TABLE Manufacturers (Code INT, Name VARCHAR, Headquarter VARCHAR, Founder VARCHAR, Revenue FLOAT)

A bar chart about what is the total revenue of each manufacturer?, display by the X from low to high.
SELECT Name, SUM(Revenue) FROM Manufacturers GROUP BY Name ORDER BY Name
SELECT "Name", SUM("Revenue") FROM "Manufacturers" GROUP BY "Name" ORDER BY "Name" NULLS FIRST