摘要: DELETE FROM DELETE FROM B B WHERE NOT EXISTS( WHERE NOT EXISTS( SELECT 1 SELECT 1 FROM FROM A A WHERE WHERE B.id=A.id B.id=A.id ) ) B.id = A.id 就是A, B 阅读全文
posted @ 2019-12-25 09:08 锐洋智能 阅读(1319) 评论(0) 推荐(0) 编辑