CREATE TABLE entrepreneur (Entrepreneur_ID NUMBER, People_ID NUMBER, Company CLOB, Money_Requested FLOAT, Investor CLOB)
CREATE TABLE people (People_ID NUMBER, Name CLOB, Height FLOAT, Weight FLOAT, Date_of_Birth CLOB)

How many companies each investor has invested? Show me a pie chart.
SELECT Investor, COUNT(Investor) FROM entrepreneur GROUP BY Investor
SELECT "Investor", COUNT("Investor") FROM "entrepreneur" GROUP BY "Investor"