INSERT INTO rating_advisory_system (system, video_type, type, code, description) VALUES ('uk-tv','tv','rating','U','U rating'),('uk-tv','tv','rating','PG','PG rating'), ('uk-tv','tv','rating','12','12 rating'),('uk-tv','tv','rating','15','15 rating'), ('uk-tv','tv','rating','18','18 rating'),('uk-tv','tv','rating','NR','NR rating'), ('uk-tv','tv','rating','TBC','TBC rating');; DELETE FROM rating_advisory_system WHERE system = 'uk-tv' AND video_type ='tv' AND code IN ('U','PG','12','15','18','NR','TBC');;