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

For those records from the products and each product's manufacturer, show me about the distribution of headquarter and the amount of headquarter , and group by attribute headquarter in a bar chart, order by the how many headquarter from low to high please.
SELECT Headquarter, COUNT(Headquarter) FROM Products AS T1 JOIN Manufacturers AS T2 ON T1.Manufacturer = T2.Code GROUP BY Headquarter ORDER BY COUNT(Headquarter)
SELECT "Headquarter", COUNT("Headquarter") FROM "Products" "T1" JOIN "Manufacturers" "T2" ON "T1"."Manufacturer" = "T2"."Code" GROUP BY "Headquarter" ORDER BY COUNT("Headquarter")