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