摘要: 1:先截图看效果 2:完整的SQl语句 1 SELECT * FROM studentscore; 2 -- 3 SET @maxscore=(SELECT MAX(score) FROM studentscore LIMIT 1); 4 SELECT MAX(A.score)score FROM 阅读全文
posted @ 2020-08-26 14:03 天天向上518 阅读(252) 评论(0) 推荐(0) 编辑