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HomeDatabaseMysql TutorialMysql一些导入导出数据库,添加修改字段命令_MySQL

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Mysql 导出数据库表包含数据命令:

mysqldump -uroot -proot abc >/var/abc.sql;

(mysql用户名:root    密码root    数据库:abc     导出到:/var/abc.sql)

Mysql 导出数据库表不包含数据命令:

mysqldump -uroot -proot -d abc >/var/abc.sql;

 Mysql导入表和数据:

 

use abc; 

 

source /var/abc.sql; 

(选择abc数据库,需要导入的文件是:/var/abc.sql)

Mysql添加字段:

 

alter table table1 add name varchar(10) not Null; 

//为table1表添加一个name字段,字段的类型为varchar(10) 

alter table table1 add sid int not Null auto_increment primary key 

//w为table1表添加一个自增逐渐 

Mysql修改命令:

 

alter table table1 change name name1 varchar(20) not Null; 

//修改表table1  把table1中的name字段修改name1,类型修改为varchar(20) 不为空 

 学习在于一滴一滴积累!

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