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DROP TABLE IF EXISTS person CASCADE;
DROP TABLE IF EXISTS warehouse CASCADE;
DROP TABLE IF EXISTS car CASCADE;
DROP TABLE IF EXISTS part CASCADE;
DROP TABLE IF EXISTS invoice CASCADE;
DROP TABLE IF EXISTS phone CASCADE;
DROP TABLE IF EXISTS parts_type CASCADE;
DROP TABLE IF EXISTS order_record CASCADE;
DROP TABLE IF EXISTS provides CASCADE;
DROP TABLE IF EXISTS client CASCADE;
DROP TABLE IF EXISTS maintenance CASCADE;
DROP TABLE IF EXISTS repair CASCADE;
DROP TABLE IF EXISTS pricing CASCADE;
DROP TABLE IF EXISTS creates CASCADE;
DROP TABLE IF EXISTS calculates CASCADE;
DROP TABLE IF EXISTS action CASCADE;
DROP TABLE IF EXISTS uses CASCADE;
DROP TABLE IF EXISTS worker CASCADE;
DROP TABLE IF EXISTS autoservice CASCADE;
DROP TABLE IF EXISTS works CASCADE;
DROP TABLE IF EXISTS skills CASCADE;
DROP TABLE IF EXISTS orders CASCADE;
DROP TABLE IF EXISTS cooperates_with CASCADE;
DROP TABLE IF EXISTS serviced_at CASCADE;
DROP TABLE IF EXISTS works_on CASCADE;
DROP TABLE IF EXISTS manages CASCADE;