數(shù)據(jù)庫應用技術章節(jié)練習(2020.04.09)

評估此CREATE TABLE語句的執(zhí)行結(jié)果：
CREATE TABLE part(
part_id NUMBER,
part_name VARCHAR2(25),
manufacturer_id NUMBER(9),
retail_price NUMBER(7,2) NOT NULL,
CONSTRAINT part_id_pk PRIMARY KEY(part_id),
CONSTRAINT cost_nn NOT NULL(cost),
CONSTRAINT FOREIGN KEY (manufacturer_id) REFERENCES manufacturer(id));
哪一行會導致產(chǎn)生錯誤（）