CREATE TABLE students ( id SERIAL PRIMARY KEY, first_name character varying(255), last_name character varying(255) ); CREATE TABLE course_sections ( id serial PRIMARY KEY, course_id integer, section character varying(10), building_code character varying(10), room_code character varying(10) );

Given the following two tables, what needs to happen to form a many-to-many relationship between them (many students can have many course sections)? CREATE TABLE students( id SERIAL PRINARY KEY first nane character verying(255), lest_neme character varying(255) CREATE TABLE course_sections ( id serial PRIMARY KEY, course id integer, section character varying (18), building code character varying(18), room_code character varying (18)