mysql基本用法
http://dev.mysql.com/doc/refman/5.1/zh/index.html
(MySql 5.1 中文参考手册)
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show databases; 显示数据库
drop database 数据库名;删除数据库
set names 'utf8';设置数据库编码为utf-8
source x:\数据库名.sql;导入一个数据库
USE 数据库名;尝试存取数据库
CREATE DATABASE 数据库名;创建一个数据库
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为表增加索引:alter table 表名 add index 索引名 ('字段名');
为表增加外键: (例表A的uid是外键,对应表B的id) (表类型为InnoDB才有外键约束)
alter table A add foreign key (uid) references B (id) on delete restrict on update restrict;
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Mysql的导入和导出
mysqldump -u root -pYOURPASSWORD DATA_BASE_NAME >mydatabasebak.sql
::是把 数据库 DATA_BASE_NAME 备份到文本文件 mydatabasebak.sql
scp mydatabasebak.sql username@192.168.0.114:.
输入用户username 的密码.
ssh 192.168.0.114
mysql -u root -p # 输入密码后进入Mysql 命令行模式
sql>create database DATA_BASE_NAME;
sql> use DATA_BASE_NAME; # 数据库名字，切换要导入的目标数据库。
sql> set names 'utf8'; # 这一步相当重要，如果原始SQL文件编码是utf8的，不加上这个语句，导入后中文是乱码
sql> source mydatabasebak.sql; # 开始导入数据。
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