标签：tin line 定义 set 无法 bee display HERE date
单表查询
单表查询语法：
select distinct 字段1,字段2... from 表名 where 条件 group by field having筛选 order by
关键字执行的优先级：
简单查询：
company.employee
员工id id int
姓名 emp_name varchar
性别 sex enum
年龄 age int
入职日期 hire_date date
岗位 post varchar
职位描述 post_comment varchar
薪水 salary double
办公室 office int
部门编号 depart_id int
# 创建表 create table employee( id int not null unique auto_increment, emp_name varchar(20) not null, sex enum(‘male‘,‘female‘) not null default ‘male‘, age int(3) unsigned not null default 28, hire_date date not null, post varchar(50), post_comment varchar(100), salary double(15,2), office int, depart_id int ); # 查看表结构 mysql> desc employee; +--------------+-----------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +--------------+-----------------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | emp_name | varchar(20) | NO | | NULL | | | sex | enum(‘male‘,‘female‘) | NO | | male | | | age | int(3) unsigned | NO | | 28 | | | hire_date | date | NO | | NULL | | | post | varchar(50) | YES | | NULL | | | post_comment | varchar(100) | YES | | NULL | | | salary | double(15,2) | YES | | NULL | | | office | int(11) | YES | | NULL | | | depart_id | int(11) | YES | | NULL | | +--------------+-----------------------+------+-----+---------+----------------+ 10 rows in set (0.09 sec) #插入记录 #三个部门：教学，销售，运营 insert into employee(emp_name,sex,age,hire_date,post,salary,office,depart_id) values (‘彭哈哈‘,‘male‘,18,‘20170301‘,‘教学‘,7300.33,401,1), (‘赵晓明‘,‘male‘,78,‘20150302‘,‘教学‘,1000000.31,401,1), (‘爱祖国‘,‘male‘,81,‘20130305‘,‘教学‘,8300,401,1), (‘延阻聚‘,‘male‘,73,‘20140701‘,‘教学‘,3500,401,1), (‘陈继承‘,‘male‘,28,‘20121101‘,‘教学‘,2100,401,1), (‘李小荷‘,‘female‘,18,‘20110211‘,‘教学‘,9000,401,1), (‘赵晓明‘,‘male‘,18,‘19000301‘,‘教学‘,30000,401,1), (‘高富帅‘,‘male‘,48,‘20101111‘,‘教学‘,10000,401,1), (‘菟丝子‘,‘female‘,48,‘20150311‘,‘销售‘,3000.13,402,2), (‘张晓敏‘,‘female‘,38,‘20101101‘,‘销售‘,2000.35,402,2), (‘冯小刚‘,‘female‘,18,‘20110312‘,‘销售‘,1000.37,402,2), (‘老小月‘,‘female‘,18,‘20160513‘,‘销售‘,3000.29,402,2), (‘格格‘,‘female‘,28,‘20170127‘,‘销售‘,4000.33,402,2), (‘彭消息‘,‘male‘,28,‘20160311‘,‘运营‘,10000.13,403,3), (‘张国‘,‘male‘,18,‘19970312‘,‘运营‘,20000,403,3), (‘小路小‘,‘female‘,18,‘20130311‘,‘运营‘,19000,403,3), (‘罗超‘,‘male‘,18,‘20150411‘,‘运营‘,18000,403,3), (‘张罗好‘,‘female‘,18,‘20140512‘,‘运营‘,17000,403,3);
只查看某张表指定的字段：
select 字段1,字段2,字段3,字段n from 表名；
mysql> select id, emp_name, sex, age from employee; #查看员工姓名性别年龄 +----+-----------+--------+-----+ | id | emp_name | sex | age | +----+-----------+--------+-----+ | 19 | 彭哈哈 | male | 18 | | 20 | 彭哈哈 | male | 18 | | 21 | 赵晓明 | male | 78 | | 22 | 爱祖国 | male | 81 | | 23 | 延阻聚 | male | 73 | | 24 | 陈继承 | male | 28 | | 25 | 李小荷 | female | 18 | | 26 | 赵晓明 | male | 18 | | 27 | 高富帅 | male | 48 | | 28 | 菟丝子 | female | 48 | | 29 | 张晓敏 | female | 38 | | 30 | 冯小刚 | female | 18 | | 31 | 老小月 | female | 18 | | 32 | 格格 | female | 28 | | 33 | 彭消息 | male | 28 | | 34 | 张国 | male | 18 | | 35 | 小路小 | female | 18 | | 36 | 罗超 | male | 18 | | 37 | 张罗好 | female | 18 | +----+-----------+--------+-----+ 19 rows in set (0.00 sec)
查看整张表：
select * from 表名;
mysql> select * from employee; # 查看整张表 +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ | id | emp_name | sex | age | hire_date | post | post_comment | salary | office | depart_id | +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ | 19 | 彭哈哈 | male | 18 | 2017-03-01 | 教学 | NULL | 7300.33 | 401 | 1 | | 20 | 彭哈哈 | male | 18 | 2017-03-01 | 教学 | NULL | 7300.33 | 401 | 1 | | 21 | 赵晓明 | male | 78 | 2015-03-02 | 教学 | NULL | 1000000.31 | 401 | 1 | | 22 | 爱祖国 | male | 81 | 2013-03-05 | 教学 | NULL | 8300.00 | 401 | 1 | | 23 | 延阻聚 | male | 73 | 2014-07-01 | 教学 | NULL | 3500.00 | 401 | 1 | | 24 | 陈继承 | male | 28 | 2012-11-01 | 教学 | NULL | 2100.00 | 401 | 1 | | 25 | 李小荷 | female | 18 | 2011-02-11 | 教学 | NULL | 9000.00 | 401 | 1 | | 26 | 赵晓明 | male | 18 | 1900-03-01 | 教学 | NULL | 30000.00 | 401 | 1 | | 27 | 高富帅 | male | 48 | 2010-11-11 | 教学 | NULL | 10000.00 | 401 | 1 | | 28 | 菟丝子 | female | 48 | 2015-03-11 | 销售 | NULL | 3000.13 | 402 | 2 | | 29 | 张晓敏 | female | 38 | 2010-11-01 | 销售 | NULL | 2000.35 | 402 | 2 | | 30 | 冯小刚 | female | 18 | 2011-03-12 | 销售 | NULL | 1000.37 | 402 | 2 | | 31 | 老小月 | female | 18 | 2016-05-13 | 销售 | NULL | 3000.29 | 402 | 2 | | 32 | 格格 | female | 28 | 2017-01-27 | 销售 | NULL | 4000.33 | 402 | 2 | | 33 | 彭消息 | male | 28 | 2016-03-11 | 运营 | NULL | 10000.13 | 403 | 3 | | 34 | 张国 | male | 18 | 1997-03-12 | 运营 | NULL | 20000.00 | 403 | 3 | | 35 | 小路小 | female | 18 | 2013-03-11 | 运营 | NULL | 19000.00 | 403 | 3 | | 36 | 罗超 | male | 18 | 2015-04-11 | 运营 | NULL | 18000.00 | 403 | 3 | | 37 | 张罗好 | female | 18 | 2014-05-12 | 运营 | NULL | 17000.00 | 403 | 3 | +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ 19 rows in set (0.00 sec)
避免重复distinct：
select distinct post from 表名;
去重功能将重复的去掉只留一个显示
mysql> select distinct post from employee; #查看部门 +--------+ | post | +--------+ | 教学 | | 销售 | | 运营 | +--------+
四则运算查询：
需求：查看所有员工的年薪，薪资乘于12就等于年薪
mysql> select emp_name, salary * 12 FROM employee; #工资乘于12 +-----------+-------------+ | emp_name | salary * 12 | +-----------+-------------+ | 彭哈哈 | 87603.96 | | 彭哈哈 | 87603.96 | | 赵晓明 | 12000003.72 | | 爱祖国 | 99600.00 | | 延阻聚 | 42000.00 | | 陈继承 | 25200.00 | | 李小荷 | 108000.00 | | 赵晓明 | 360000.00 | | 高富帅 | 120000.00 | | 菟丝子 | 36001.56 | | 张晓敏 | 24004.20 | | 冯小刚 | 12004.44 | | 老小月 | 36003.48 | | 格格 | 48003.96 | | 彭消息 | 120001.56 | | 张国 | 240000.00 | | 小路小 | 228000.00 | | 罗超 | 216000.00 | | 张罗好 | 204000.00 | +-----------+-------------+ 19 rows in set (0.00 sec)
需求：查看所有员工的年薪，薪资乘于12就等于年薪并且把字段salary改成Annual_salary
mysql> SELECT emp_name, salary*12 AS Annual_salary FROM employee; +-----------+---------------+ | emp_name | Annual_salary | +-----------+---------------+ | 彭哈哈 | 87603.96 | | 彭哈哈 | 87603.96 | | 赵晓明 | 12000003.72 | | 爱祖国 | 99600.00 | | 延阻聚 | 42000.00 | | 陈继承 | 25200.00 | | 李小荷 | 108000.00 | | 赵晓明 | 360000.00 | | 高富帅 | 120000.00 | | 菟丝子 | 36001.56 | | 张晓敏 | 24004.20 | | 冯小刚 | 12004.44 | | 老小月 | 36003.48 | | 格格 | 48003.96 | | 彭消息 | 120001.56 | | 张国 | 240000.00 | | 小路小 | 228000.00 | | 罗超 | 216000.00 | | 张罗好 | 204000.00 | +-----------+---------------+ 19 rows in set (0.06 sec)
定义格式显示：
concat()函数用于连接字符串
select concat(‘字符串1‘,字段,‘字符串‘,字段) from 表名;
mysql> select concat(‘姓名：‘,emp_name,‘年薪‘,salary*12) from employee; +-------------------------------------------------+ | concat(‘姓名：‘,emp_name,‘年薪‘,salary*12) | +-------------------------------------------------+ | 姓名：彭哈哈年薪87603.96 | | 姓名：彭哈哈年薪87603.96 | | 姓名：赵晓明年薪12000003.72 | | 姓名：爱祖国年薪99600.00 | | 姓名：延阻聚年薪42000.00 | | 姓名：陈继承年薪25200.00 | | 姓名：李小荷年薪108000.00 | | 姓名：赵晓明年薪360000.00 | | 姓名：高富帅年薪120000.00 | | 姓名：菟丝子年薪36001.56 | | 姓名：张晓敏年薪24004.20 | | 姓名：冯小刚年薪12004.44 | | 姓名：老小月年薪36003.48 | | 姓名：格格年薪48003.96 | | 姓名：彭消息年薪120001.56 | | 姓名：张国年薪240000.00 | | 姓名：小路小年薪228000.00 | | 姓名：罗超年薪216000.00 | | 姓名：张罗好年薪204000.00 | +-------------------------------------------------+ 19 rows in set (0.02 sec)
concat_ws()第一个参数为分隔符
需求：查看每个员工的年薪，格式为：姓名：年薪
mysql> select concat_ws(‘:‘, emp_name, salary * 12) AS Annual_salary from employee; #第一个数为分隔符 +-----------------------+ | Annual_salary | +-----------------------+ | 彭哈哈:87603.96 | | 彭哈哈:87603.96 | | 赵晓明:12000003.72 | | 爱祖国:99600.00 | | 延阻聚:42000.00 | | 陈继承:25200.00 | | 李小荷:108000.00 | | 赵晓明:360000.00 | | 高富帅:120000.00 | | 菟丝子:36001.56 | | 张晓敏:24004.20 | | 冯小刚:12004.44 | | 老小月:36003.48 | | 格格:48003.96 | | 彭消息:120001.56 | | 张国:240000.00 | | 小路小:228000.00 | | 罗超:216000.00 | | 张罗好:204000.00 | +-----------------------+ 19 rows in set (0.00 sec)
where约束：
where字句中可以使用：
条件查询：
select 字段 from 表名
where 字段 = ...;
需求：查询员工表工资等于20000的
select emp_name , salary from employee where salary = 20000;
mysql> select emp_name , salary from employee where salary = 20000; +----------+----------+ | emp_name | salary | +----------+----------+ | 张国 | 20000.00 | +----------+----------+ 1 row in set (0.00 sec)
多条件查询：
需求：查询教学部工资大于10000的
SELECT emp_name,salary FROM employee
WHERE post=‘teacher‘ AND salary>10000;
mysql> SELECT emp_name,salary FROM employee -> WHERE post=‘教学‘ AND salary>10000; +-----------+------------+ | emp_name | salary | +-----------+------------+ | 赵晓明 | 1000000.31 | | 赵晓明 | 30000.00 | +-----------+------------+ 2 rows in set (0.00 sec)
关键字between and查询：
需求：查询员工薪资15000至20000的人
ysql> select emp_name,salary from employee -> where salary between 15000 and 20000; +-----------+----------+ | emp_name | salary | +-----------+----------+ | 张国 | 20000.00 | | 小路小 | 19000.00 | | 罗超 | 18000.00 | | 张罗好 | 17000.00 | +-----------+----------+ 4 rows in set (0.00 sec)
关键字is null(判断某个字段是否为null不能用=号，需要用is)
mysql>SELECT emp_name,post_comment FROM employee -> WHERE post_comment IS NULL; +-----------+--------------+ | emp_name | post_comment | +-----------+--------------+ | 彭哈哈 | NULL | | 彭哈哈 | NULL | | 赵晓明 | NULL | | 爱祖国 | NULL | | 延阻聚 | NULL | | 陈继承 | NULL | | 李小荷 | NULL | | 赵晓明 | NULL | | 高富帅 | NULL | | 菟丝子 | NULL | | 张晓敏 | NULL | | 冯小刚 | NULL | | 老小月 | NULL | | 格格 | NULL | | 彭消息 | NULL | | 张国 | NULL | | 小路小 | NULL | | 罗超 | NULL | | 张罗好 | NULL | +-----------+--------------+ 19 rows in set (0.00 sec)
关键字in集合查询：
#查询工资为3000或3500，4000或9000 mysql>SELECT emp_name,salary FROM employee ->WHERE salary=3000 OR salary=3500 OR salary=4000 OR salary=9000; +-----------+---------+ | emp_name | salary | +-----------+---------+ | 延阻聚 | 3500.00 | | 李小荷 | 9000.00 | +-----------+---------+ 2 rows in set (0.00 sec) mysql>SELECT emp_name,salary FROM employee ->WHERE salary IN (3000,3500,4000,9000) ; +-----------+---------+ | emp_name | salary | +-----------+---------+ | 延阻聚 | 3500.00 | | 李小荷 | 9000.00 | +-----------+---------+ 2 rows in set (0.03 sec) mysql> SELECT emp_name,salary FROM employee -> WHERE salary NOT IN (3000,3500,4000,9000) ; #not不寻找某某或。。。 +-----------+------------+ | emp_name | salary | +-----------+------------+ | 彭哈哈 | 7300.33 | | 彭哈哈 | 7300.33 | | 赵晓明 | 1000000.31 | | 爱祖国 | 8300.00 | | 陈继承 | 2100.00 | | 赵晓明 | 30000.00 | | 高富帅 | 10000.00 | | 菟丝子 | 3000.13 | | 张晓敏 | 2000.35 | | 冯小刚 | 1000.37 | | 老小月 | 3000.29 | | 格格 | 4000.33 | | 彭消息 | 10000.13 | | 张国 | 20000.00 | | 小路小 | 19000.00 | | 罗超 | 18000.00 | | 张罗好 | 17000.00 | +-----------+------------+ 17 rows in set (0.00 sec)
关键字like模糊查询：
通配符‘%‘表示任意长度的任意内容
mysql>SELECT * FROM employee ->WHERE emp_name LIKE ‘张%‘; #以张开头后面不限都能查询出来 +----+-----------+--------+-----+------------+--------+--------------+----------+--------+-----------+ | id | emp_name | sex | age | hire_date | post | post_comment | salary | office | depart_id | +----+-----------+--------+-----+------------+--------+--------------+----------+--------+-----------+ | 29 | 张晓敏 | female | 38 | 2010-11-01 | 销售 | NULL | 2000.35 | 402 | 2 | | 34 | 张国 | male | 18 | 1997-03-12 | 运营 | NULL | 20000.00 | 403 | 3 | | 37 | 张罗好 | female | 18 | 2014-05-12 | 运营 | NULL | 17000.00 | 403 | 3 | +----+-----------+--------+-----+------------+--------+--------------+----------+--------+-----------+ 3 rows in set (0.00 sec)
通配符：‘_‘一个字符长度的任意内容
mysql> SELECT * FROM employee -> WHERE emp_name LIKE ‘赵__‘; +----+-----------+------+-----+------------+--------+--------------+------------+--------+-----------+ | id | emp_name | sex | age | hire_date | post | post_comment | salary | office | depart_id | +----+-----------+------+-----+------------+--------+--------------+------------+--------+-----------+ | 21 | 赵晓明 | male | 78 | 2015-03-02 | 教学 | NULL | 1000000.31 | 401 | 1 | | 26 | 赵晓明 | male | 18 | 1900-03-01 | 教学 | NULL | 30000.00 | 401 | 1 | +----+-----------+------+-----+------------+--------+--------------+------------+--------+-----------+ 2 rows in set (0.05 sec)
聚合函数：聚合函数聚合的是组的内容，若是没有分组，则默认一组
mysql> select count( * ) from employee; #求雇员表的个数 +------------+ | count( * ) | +------------+ | 19 | +------------+ 1 row in set (0.00 sec) mysql> select max(salary) from employee; #求雇员表里的薪资最大值 +-------------+ | max(salary) | +-------------+ | 1000000.31 | +-------------+ 1 row in set (0.00 sec) mysql> select min(salary) from employee; #求雇员表里的薪资最大值 +-------------+ | min(salary) | +-------------+ | 1000.37 | +-------------+ 1 row in set (0.00 sec) mysql> select sum(salary) from employee; #求雇员表的和 +-------------+ | sum(salary) | +-------------+ | 1174502.57 | +-------------+ 1 row in set (0.00 sec) mysql> select avg(salary) from employee; #求雇员表的平均值 +--------------+ | avg(salary) | +--------------+ | 61815.924737 | +--------------+ 1 row in set (0.00 sec)
having：过滤语句
#！！！执行优先级从高到低：where > group by > having #1. Where 发生在分组group by之前，因而Where中可以有任意字段，但是绝对不能使用聚合函数。 #2. Having发生在分组group by之后，因而Having中可以使用分组的字段，无法直接取到其他字段,可以使用聚合函数
排序： order by
#升序排序 mysql> select * from employee order by salary; +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ | id | emp_name | sex | age | hire_date | post | post_comment | salary | office | depart_id | +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ | 30 | 冯小刚 | female | 18 | 2011-03-12 | 销售 | NULL | 1000.37 | 402 | 2 | | 29 | 张晓敏 | female | 38 | 2010-11-01 | 销售 | NULL | 2000.35 | 402 | 2 | | 24 | 陈继承 | male | 28 | 2012-11-01 | 教学 | NULL | 2100.00 | 401 | 1 | | 28 | 菟丝子 | female | 48 | 2015-03-11 | 销售 | NULL | 3000.13 | 402 | 2 | | 31 | 老小月 | female | 18 | 2016-05-13 | 销售 | NULL | 3000.29 | 402 | 2 | | 23 | 延阻聚 | male | 73 | 2014-07-01 | 教学 | NULL | 3500.00 | 401 | 1 | | 32 | 格格 | female | 28 | 2017-01-27 | 销售 | NULL | 4000.33 | 402 | 2 | | 19 | 彭哈哈 | male | 18 | 2017-03-01 | 教学 | NULL | 7300.33 | 401 | 1 | | 20 | 彭哈哈 | male | 18 | 2017-03-01 | 教学 | NULL | 7300.33 | 401 | 1 | | 22 | 爱祖国 | male | 81 | 2013-03-05 | 教学 | NULL | 8300.00 | 401 | 1 | | 25 | 李小荷 | female | 18 | 2011-02-11 | 教学 | NULL | 9000.00 | 401 | 1 | | 27 | 高富帅 | male | 48 | 2010-11-11 | 教学 | NULL | 10000.00 | 401 | 1 | | 33 | 彭消息 | male | 28 | 2016-03-11 | 运营 | NULL | 10000.13 | 403 | 3 | | 37 | 张罗好 | female | 18 | 2014-05-12 | 运营 | NULL | 17000.00 | 403 | 3 | | 36 | 罗超 | male | 18 | 2015-04-11 | 运营 | NULL | 18000.00 | 403 | 3 | | 35 | 小路小 | female | 18 | 2013-03-11 | 运营 | NULL | 19000.00 | 403 | 3 | | 34 | 张国 | male | 18 | 1997-03-12 | 运营 | NULL | 20000.00 | 403 | 3 | | 26 | 赵晓明 | male | 18 | 1900-03-01 | 教学 | NULL | 30000.00 | 401 | 1 | | 21 | 赵晓明 | male | 78 | 2015-03-02 | 教学 | NULL | 1000000.31 | 401 | 1 | +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ 19 rows in set (0.00 sec) #倒序排序 mysql> select * from employee order by salary asc; +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ | id | emp_name | sex | age | hire_date | post | post_comment | salary | office | depart_id | +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ | 30 | 冯小刚 | female | 18 | 2011-03-12 | 销售 | NULL | 1000.37 | 402 | 2 | | 29 | 张晓敏 | female | 38 | 2010-11-01 | 销售 | NULL | 2000.35 | 402 | 2 | | 24 | 陈继承 | male | 28 | 2012-11-01 | 教学 | NULL | 2100.00 | 401 | 1 | | 28 | 菟丝子 | female | 48 | 2015-03-11 | 销售 | NULL | 3000.13 | 402 | 2 | | 31 | 老小月 | female | 18 | 2016-05-13 | 销售 | NULL | 3000.29 | 402 | 2 | | 23 | 延阻聚 | male | 73 | 2014-07-01 | 教学 | NULL | 3500.00 | 401 | 1 | | 32 | 格格 | female | 28 | 2017-01-27 | 销售 | NULL | 4000.33 | 402 | 2 | | 19 | 彭哈哈 | male | 18 | 2017-03-01 | 教学 | NULL | 7300.33 | 401 | 1 | | 20 | 彭哈哈 | male | 18 | 2017-03-01 | 教学 | NULL | 7300.33 | 401 | 1 | | 22 | 爱祖国 | male | 81 | 2013-03-05 | 教学 | NULL | 8300.00 | 401 | 1 | | 25 | 李小荷 | female | 18 | 2011-02-11 | 教学 | NULL | 9000.00 | 401 | 1 | | 27 | 高富帅 | male | 48 | 2010-11-11 | 教学 | NULL | 10000.00 | 401 | 1 | | 33 | 彭消息 | male | 28 | 2016-03-11 | 运营 | NULL | 10000.13 | 403 | 3 | | 37 | 张罗好 | female | 18 | 2014-05-12 | 运营 | NULL | 17000.00 | 403 | 3 | | 36 | 罗超 | male | 18 | 2015-04-11 | 运营 | NULL | 18000.00 | 403 | 3 | | 35 | 小路小 | female | 18 | 2013-03-11 | 运营 | NULL | 19000.00 | 403 | 3 | | 34 | 张国 | male | 18 | 1997-03-12 | 运营 | NULL | 20000.00 | 403 | 3 | | 26 | 赵晓明 | male | 18 | 1900-03-01 | 教学 | NULL | 30000.00 | 401 | 1 | | 21 | 赵晓明 | male | 78 | 2015-03-02 | 教学 | NULL | 1000000.31 | 401 | 1 | +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ 19 rows in set (0.00 sec) # 优先根据age从小到大排,在age相同的情况下,再根据薪资从大到小排 mysql> select * from employee order by age, salary desc; +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ | id | emp_name | sex | age | hire_date | post | post_comment | salary | office | depart_id | +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ | 26 | 赵晓明 | male | 18 | 1900-03-01 | 教学 | NULL | 30000.00 | 401 | 1 | | 34 | 张国 | male | 18 | 1997-03-12 | 运营 | NULL | 20000.00 | 403 | 3 | | 35 | 小路小 | female | 18 | 2013-03-11 | 运营 | NULL | 19000.00 | 403 | 3 | | 36 | 罗超 | male | 18 | 2015-04-11 | 运营 | NULL | 18000.00 | 403 | 3 | | 37 | 张罗好 | female | 18 | 2014-05-12 | 运营 | NULL | 17000.00 | 403 | 3 | | 25 | 李小荷 | female | 18 | 2011-02-11 | 教学 | NULL | 9000.00 | 401 | 1 | | 19 | 彭哈哈 | male | 18 | 2017-03-01 | 教学 | NULL | 7300.33 | 401 | 1 | | 20 | 彭哈哈 | male | 18 | 2017-03-01 | 教学 | NULL | 7300.33 | 401 | 1 | | 31 | 老小月 | female | 18 | 2016-05-13 | 销售 | NULL | 3000.29 | 402 | 2 | | 30 | 冯小刚 | female | 18 | 2011-03-12 | 销售 | NULL | 1000.37 | 402 | 2 | | 33 | 彭消息 | male | 28 | 2016-03-11 | 运营 | NULL | 10000.13 | 403 | 3 | | 32 | 格格 | female | 28 | 2017-01-27 | 销售 | NULL | 4000.33 | 402 | 2 | | 24 | 陈继承 | male | 28 | 2012-11-01 | 教学 | NULL | 2100.00 | 401 | 1 | | 29 | 张晓敏 | female | 38 | 2010-11-01 | 销售 | NULL | 2000.35 | 402 | 2 | | 27 | 高富帅 | male | 48 | 2010-11-11 | 教学 | NULL | 10000.00 | 401 | 1 | | 28 | 菟丝子 | female | 48 | 2015-03-11 | 销售 | NULL | 3000.13 | 402 | 2 | | 23 | 延阻聚 | male | 73 | 2014-07-01 | 教学 | NULL | 3500.00 | 401 | 1 | | 21 | 赵晓明 | male | 78 | 2015-03-02 | 教学 | NULL | 1000000.31 | 401 | 1 | | 22 | 爱祖国 | male | 81 | 2013-03-05 | 教学 | NULL | 8300.00 | 401 | 1 | +----+-----------+--------+-----+------------+--------+--------------+------------+--------+-----------+ 19 rows in set (0.00 sec)
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原文地址：https://www.cnblogs.com/yjtxin/p/12709359.html
