mysql查看数据库命令

mysql查看数据库命令

打开的数据库的命令

mysql> use mysql

Database changed

查看数据库的命令

mysql> show databases;

查看数据表的详细结构

mysql> desc func;

新建数据库

mysql> create database school;

Query OK, 1 row affected (0.00 sec)

新建表

mysql> create table user01(

-> id varchar(20) NOT NULL,

-> userName varchar(10) NOT NULL,

-> age int(11) default'0',

-> sex char(2) NOT NULL default'm',

-> PRIMARY KEY (id)

-> )TYPE=InnoDB;

Query OK, 0 rows affected, 1 warning (0.02 sec)mysql>desc student;

插入和删除表中的数据

Create table student(stuName varchar(20),age varchar(20),id varchar(20),set0 char(1));

插入

mysql> insert into student(id,stuName) values('1','tomcat');

Query OK, 1 row affected (0.00 sec)

删除

mysql> delete from student where id='1';

Query OK, 1 row affected (0.01 sec)

删除表中所有数据

mysql> truncate table student;

Query OK, 1 row affected (0.01 sec)

删除表

mysql> create table temp(t varchar(1));

Query OK, 0 rows affected (0.00 sec)

mysql> drop table temp;

Query OK, 0 rows affected (0.00 sec)

创建新用户并给予权限

mysql> grant all privileges on *.* to dbuser@localhost identified by '1234'

with grant option;

更改Mysql用户密码

c:\Mysql5.0\bin>mysqladmin -u root -p password 1234

Enter password: ****

备份数据库及表

我们用mysqldump命令来备份数据库

c:\mysql\bin\>mysqldump –u root –p 3306 mysql>d:\backup.sql

执行此语句将把mydb 备份到D盘的backup.sql文件中

备份多个数据库表

c:\mysql\bin\>mysqldump –u root –p 3306 school user01 user >d:\backup.sql

此句的意思是把school库中的user01表和user表的内容和表的定义备份到D盘backup.sql文件中。

备份所有的数据库

c:\myql\bin>mysqldump –u root –p 3306 –all –database>d:backup.sql

还原Mysql数据库

c:\mysql\bin\mysql –u root –p 3306 school

还原其中的一个表

mysql> source d:\books.sql;

ERROR:

Unknown command '\b'.

Query OK, 0 rows affected (0.00 sec)

Query OK, 1 row affected (0.00 sec)

退出Mysql连接

mysql>quit(exit)

关闭mysql服务

C:\mysql\bin>net mysql