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 heights of body builders with total score smaller than 315?
SELECT T2.height FROM body_builder AS T1 JOIN people AS T2 ON T1.people_id = T2.people_id WHERE T1.total < 315
SELECT "T2"."height" FROM "body_builder" "T1" JOIN "people" "T2" ON "T1"."people_id" = "T2"."people_id" WHERE "T1"."total" < 315