CREATE TABLE debate (debate_id DECIMAL, date TEXT, venue TEXT, num_of_audience DECIMAL)
CREATE TABLE debate_people (debate_id DECIMAL, affirmative DECIMAL, negative DECIMAL, if_affirmative_win others)
CREATE TABLE people (people_id DECIMAL, district TEXT, name TEXT, party TEXT, age DECIMAL)

How many debates are there?
SELECT COUNT(*) FROM debate
SELECT COUNT(*) FROM "debate"