mysql查询分数前三个_Mysql 单表查询各班级总分前三名

1.班级字段class2.总分是ymsc+sxsc.3.成绩相同者保持并列.4.mysql版本5.7.21PS:必须仅用一条语句完成,回答优秀者经测试成功,再送你100分.表记录SQL语句:INSERTINTOst(`id`,`name`,`cl...

1.班级字段class2.总分是ymsc+sxsc.3.成绩相同者保持并列.4.mysql版本5.7.21PS:必须仅用一条语句完成,回答优秀者经测试成功,再送你100分.表记录SQL语句:INSERT INTO st(`id`, `name`, `class`, `age`, `ywsc`, `sxsc`) VALUES(121, '钱式溢', '07-21', 22, 120, 59),(200, '沙雕', '07-23', 19, 108, 77),(203, '陈德丽', '07-21', 23, 97, 63),(208, '泰瑞宝', '07-25', 19, 98, 59),(209, '旺德福', '07-25', 28, 48, 114),(210, '我太富', '07-25', 31, 93, 123),(211, '黑宾', '07-25', 22, 101, 79),(212, '苟无敬', '07-25', 24, 118, 90),(213, '刘奶', '07-25', 23, 67, 79),(218, '李问', '07-23', 19, 108, 77),(219, '王说', '07-20', 28, 78, 99),(220, '侯启娥', '07-23', 31, 63, 101),(221, '沙俊德', '07-21', 22, 120, 79),(222, '百得说', '07-20', 24, 131, 90),(223, '尚且负', '07-20', 23, 107, 63),(224, '滚蛋', '07-23', 33, 140, 83),(226, '李凯华', '07-21', 22, 80, 79),(229, '马闭屏', '07-20', 24, 131, 78),(239, '操正德', '07-20', 28, 78, 92),(308, '张泗世', '07-23', 19, 108, 77),(319, '李拈迩', '07-20', 28, 77, 100),(320, '王埘陆', '07-23', 31, 63, 101),(321, '王实巴', '07-21', 22, 110, 79),(322, '马石臼', '07-25', 24, 111, 90),(323, '吴识参', '07-20', 23, 104, 73),(328, '赵念一', '07-23', 19, 98, 77),(329, '陈二式', '07-23', 23, 107, 63),(419, '李石武', '07-21', 28, 78, 91),(420, '周尓散', '07-23', 31, 63, 101),(422, '郑石耳', '07-23', 24, 81, 90);

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