Mysql 常用命令
(1)登录
mysql –h 主机名 –u用户名 –p密码
C:/> mysql -h 192.168.1.45 -u root -p root
(2)显示所有数据库
mysql > show databases;
(3)进入指定的数据库
use 库名;
mysql > use mysql;
(4)查看库中所有表
show tables from 库名;查看其他库中的所有表
mysql > show tables;
mysql > show tables from mysql;
(5)查看当前库
mysql > select database();
(6)查看版本
C:/ > mysql -version //进入mysql客户端之前
C:/ > mysql -V //进入mysql客户端之前
mysql > select version(); //进入mysql客户端之后
(7)新建一个数据库
mysql > create database spark;
(8)建表
mysql > create table customer(id varchar(30),age int, name varchar(30),birthday date);
(9)查看表结构
mysql > desc customer;
(10)查看表
mysql > select * from customer;
(11)查询特定列
mysql > select id,name,sex from student
(12)查询数据并进行过滤
mysql > select id,name,sex from student where id => 1003;
(13)运算符查询
mysql > select id,name,sex from student where age >=18 and age <=35;
mysql > select id,name,sex from student where age between 18 and 35;
(14)查询变种
mysql > select * from student where age =18 or age =35 or age =23
mysql > select * from student where age in (18,23,35);
mysql > select * from student where name like ‘%小%’;
mysql > select * from student where name like ‘_明%’;
mysql > select * from student where email is null;
mysql > select * from student where email is not null;
mysql > select * from student order by age ; //升序
mysql > select * from student order by age desc ; //降序
尖叫提示:%匹配任意多个字符,_只匹配一个字符
(15)插入数据
mysql > insert into student(id,name) values(1001, ‘小明’);
尖叫提示:插入 varchar 或 date 型的数据要用 单引号 引起来
(16)修改表
mysql > update student set name=‘小红’ where id = 1001;
(17)删除表记录
mysql > delete from student where id =1001;
(18)删除表
mysql > drop table customer;
删除数据库
mysql> drop database girls
(19)退出
一共三种方式
mysql > exit;
ctrl+C
quit;