A.
CHECK(销售价格BETWEEN单价×0.6 AND单价×1.5)
B.
CHECK(销售价格BETWEEN商品表.单价×0.6 AND商品表.单价×1.5)
C.
CREATE TRIGGER tri_Sales ON销售表FOR INSERT,UPDATE AS IF EXISTS(SELECT * FROM INSERTED a JOIN商品表b ON a.商品号=b.商品号 WHERE销售价格NOT BETWEEN单价×0.6 AND单价×1.5) ROLLBACK
D.
CREATE TRIGGER tri_Sales ON销售表 INSTEAD OF INSERT,UPDATE AS IF EXISTS(SELECT×FROM INSERTED a JOIN商品表b ON a.商品号=b.商品号 WHERE销售价格NOT BETWEEN单价×0.6 AND单价×1.5) ROLLBACK