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数据库迁移的总结_MySQL

Jun 01, 2016 pm 01:31 PM
database server

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数据库迁移的总结

 

需求:将远程服务器IP:172.10.10.1上的数据库database1上的数据迁移到服务器IP:172.10.10.2的数据库database2的表table中,要求字段要对应

 

1、本地登录远程服务器,并下载数据

 

      远程登录服务器                                     ssh 172.10.10.1        查看此服务器上的mysql进程              ps -ef | grep mysql      //一台服务器上可能有多个mysql进程,主要通过端口及sock文件进行区分     登录端口为3307的mysql服务器          /home/work/oem/mysql_oem/bin/mysql -h localhost -uroot -P 3307 --socket=/home/work/oem/mysql_oem/mysql.sock     查看3307的mysql服务器上的数据的编码形式   show variables like 'character%';     查看3307的mysql服务器上数据库             show databases     将端口为3307的mysql服务器上的数据按照latin1编码dump下来       /home/work/oem/mysql_oem/bin/mysqldump --default-character-set=latin1 -h localhost -uroot -P 3307 --socket=/home/work/oem/mysql_oem/mysql.sock    database1      > ~/oem/redmine_oem/public/database1.sql
Copy after login

同样将172.10.10.2中的数据库database2的表table下下来

2、本地进行迁移

      将database1.sql下载到本地                                         wget url      在本地创建数据库                                                           create schema database1      将数据导入到本地的数据库database1中                     mysql -uroot -p*** -hlocalhost database1 < /home/sunzhijie/sql/database1.sql                                                                                                 or  mysql> source path
Copy after login

按照要求,相应的字段做对应

   a) Insert into......select .....from ..      b) update ..... set .... where...      c) substring(string,pos)     取string的自pos位置起的子串      d) concat(string1, string2):将string1与string2连接
Copy after login

 

 

3、本地迁移成功的话,上线

 

      a) 将线上的系统进行备份

 

      b) 查看目标数据库

 

      c) 进行本地的一系列操作

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