mysql经常使用的命令

show databases;

use nxu_life;

show tables;

select * from news where department='教务处' limit 10,10;

set names gb2312;

show columns from news;

drop database nxu_life;

source D:\nxu_life.sql;

alter table user_info modify column email varchar(50);//改动字符长度

alter table test add myc interger not null default 20;//添加字段

alter table test drop column myc;//删除字段

quit;

exit;//退出