CREATE TABLE company (Company_ID FLOAT, Name CLOB, Headquarters CLOB, Industry CLOB, Sales_in_Billion FLOAT, Profits_in_Billion FLOAT, Assets_in_Billion FLOAT, Market_Value_in_Billion FLOAT)
CREATE TABLE employment (Company_ID NUMBER, People_ID NUMBER, Year_working NUMBER)
CREATE TABLE people (People_ID NUMBER, Age NUMBER, Name CLOB, Nationality CLOB, Graduation_College CLOB)

Bar chart x axis headquarters y axis the total number, and sort by the bars in asc.
SELECT Headquarters, COUNT(*) FROM company GROUP BY Headquarters ORDER BY Headquarters
SELECT "Headquarters", COUNT(*) FROM "company" GROUP BY "Headquarters" ORDER BY "Headquarters"