CREATE TABLE Manufacturers (Code NUMBER, Name VARCHAR2, Headquarter VARCHAR2, Founder VARCHAR2, Revenue FLOAT)
CREATE TABLE Products (Code NUMBER, Name VARCHAR2, Price NUMBER, Manufacturer NUMBER)

Bar graph to show sum revenue from different name, and rank bars in asc order.
SELECT Name, SUM(Revenue) FROM Manufacturers GROUP BY Name ORDER BY Name
SELECT "Name", SUM("Revenue") FROM "Manufacturers" GROUP BY "Name" ORDER BY "Name"