如何将 MySQL 数据库从一个硬盘驱动器移动到另一个硬盘驱动器？

Question

I am using MySQL 5.5 and MySQLWorkbench on Windows7. I have successfully created a database on my C: drive but I want to move it to my E: drive. I stopped the mysqld daemon and edited the my.ini file to change datadir="C:/ProgramData/MySQL/MySQL Server 5.5/Data/" to datadir="E:/MySQL/data/". I copied the data from the C: location to the E: location. I can start the mysqld process, but the database I created does not appear. Would anyone have any explanation as to what I am doing wrong?

Answer 1

As I wanted my innodb database to sit on another partition, I stopped MySQL from the MySQL Workbench. I copied my innodb database ibdata1 as well as 2 log files which MySQL automatically created in my C:\\ProgramData\\MySQL\\ folder to a new folder on my E: partition. I added the following to my.ini:

innodb_data_home_dir = "E:/MySQL Data"

Now, when I start my database, all changes are made to the ibdata1 in the E: drive.

Answer 2

Basicly you would like to copy all the contents in the old directory to the new directory. Make sure that while doing this you don't also copy binlogs (if any, they look like mysql-bin.001 etc. and also don't copy mysql-bin.index because that contains real path reference to the old binary logs). Once you do that, you should be able to restart the mysql daemon and login to see the databases.

PS: not tested, but should work.

Answer 3

When I was trying to move my database I ran into the issue where windows didn't have the same permissions on the new data folder as the original. You may check that the correct user(s) have access to the new folder by going to the properties of the folder then selecting the security tab.

Answer 4

使用此工具将数据库转储到磁盘http://sourceforge.net/projects/mysqlbutool/然后使用此工具将其恢复到新服务器http://www.webyog.com/