select au_id from authors where price<$15 or price >$ 20. 下面哪一条语句与这一条语句执行效果相同(? ? )[1分]
发布于 2021-02-27 20:40:14
【单选题】 A select au_id from authors where price IN($15,:$20) B select au_id from authors where price between $15 and $20 C select au_id from authors where price not between $15 and $20 D select au_id from authors where price not IN($15,$20)