mysql Modify the location directory of data

Specific operations:
　　1. Stop MySQL
　　and start -cmd
　　net stop mysql5
　　2. Copy the original database directory to the new directory
　　1. Copy the data directory in C:\ProgramData\MySQL\MySQL Server 5.5\ to
　　D:\Program Files\MySQL\MySQL Server 5.5\ directory (self-built directory)
3. Modify MySQL configuration file
　　1. Open my.ini in C:\ProgramData\MySQL\MySQL Server 5.5\data\ directory with Notepad and
　　find datadir="C:\ProgramData \MySQL\MySQL Server 5.5\data"
　　in front of # to comment
　　out Add a line below
　　datadir="D:\Program Files\MySQL\MySQL Server 5.5\data" After the
　　modification is completed, save and exit.
　　4. Restart MySQL
　　1. Start-
　　cmd net start mysql5
　　2. Enter MySQL console
　　Start -All Programs-MySQL-MySQL Server 5.5-MySQL 5.5 Command Line Client
　　prompts to enter the password of MySQL root account, enter and press Enter to enter MySQL console
show variables like '%datadir%'; #Query the MySQL database storage directory
If the query is displayed as D:\Program Files\MySQL\MySQL Server 5.5\data\, it means the modification is successful!
　　Use the data file backup under data to restore the database.


If you modify the location of innodb_data_home_dir, you need to copy the files under the file.