CREATE TABLE body_builder (body_builder_id NUMBER, people_id NUMBER, snatch NUMBER, clean_jerk NUMBER, total NUMBER)
CREATE TABLE people (people_id NUMBER, name CLOB, height NUMBER, weight NUMBER, birth_date CLOB, birth_place CLOB)

What are the birth places that are shared by at least two people?
SELECT birth_place FROM people GROUP BY birth_place HAVING COUNT(*) >= 2
SELECT "birth_place" FROM "people" GROUP BY "birth_place" HAVING COUNT(*) >= 2