一、排序:order by
1. 建表
CREATE TABLE `studentexam` (
`name` VARCHAR(100) DEFAULT NULL COMMENT '学生姓名',
`testSubject` VARCHAR(20) DEFAULT NULL COMMENT '考试科目',
`score` VARCHAR(2) DEFAULT NULL COMMENT '分数等级'
) ENGINE=INNODB DEFAULT CHARSET=utf8
插入数据后
2. 排序 order by
- 升序: ASC
SELECT *
FROM
studentExam
ORDER BY `score` ASC
- 降序 DESC
SELECT *
FROM
studentExam
ORDER BY `score` DESC
二、分页 limit 0,5
1.要求给上述 studentExam 分页 ,4个数据一页
2.开始查询
(1) 第一页 0-5
SELECT *
FROM
studentExam
ORDER BY `score` ASC
LIMIT 0,5
(1) 第2页 5,5
SELECT *
FROM
studentExam
ORDER BY `score` ASC
LIMIT 5,5
(3) 类推: