Modify mysql path

MySQL is an open source relational database management system that is widely used in corporate and personal data management. In the process of using MySQL, sometimes you need to modify the MySQL installation path to better manage the data and programs on the server. This article will introduce how to modify the path of MySQL.

1. Back up MySQL data

Before modifying the MySQL path, you first need to back up the original data to avoid data loss or damage. You can back up by using the mysqldump command that comes with MySQL. The specific method is as follows:

1. Open the command prompt or terminal window;
2. Switch to the bin directory under the MySQL installation directory. ;

3. Run the following command to back up MySQL data, where username and password are the MySQL username and password respectively:

   mysqldump -u username -p password --all-databases > backup.sql

4. When prompted for a password, enter your MySQL password and wait for the command to complete the backup operation.

After the backup is completed, you can save the backup file to another directory to avoid being overwritten when the MySQL path is modified.

2. Modify the MySQL path

After backing up the MySQL data, you can start modifying the MySQL path. The specific steps are as follows:

1. Close the MySQL service and process. You can find the MySQL service in the services of the Windows system and stop it, or use the following command to end the MySQL process in the terminal:

   taskkill /f /pid mysql process ID

2. will Copy the MySQL installation directory to the new path location. You can use commands such as folder copy or xcopy to perform copy operations.

3. Modify the MySQL configuration file my.ini file. Create the my.ini file on the new path and set the new path of MySQL in it. The specific method is as follows:

   [mysqld]
   basedir=C:
   ewpathmysql
   datadir=C :
   ewpathdata

Among them, basedir represents the installation path of MySQL, and datadir represents the path where MySQL stores data. The new path should be set to the superior directory of the MySQL installation directory.

4. Modify environment variables. In Windows systems, the new MySQL path needs to be added to the system environment variables so that other programs can call MySQL. The specific method is as follows:

   Right-click "My Computer" or "This Computer" and select "Properties";

   Click the "Advanced System Settings" tab;

   Click "Environment Variables" button;

   Find the "Path" variable in "System Variables" and double-click to open the editing window;

   Add a new MySQL path at the end of the variable value, be careful to use points Separated by a sign (;);

   Click "OK" to close the window and save the changes.

3. Restart the MySQL service

After completing the above steps, you need to restart the MySQL service or process so that MySQL can work normally. You can use the service control manager of the Windows system or start MySQL directly in the terminal.

Start MySQL in the service control manager:

1. Open the "Service" controller and find the MySQL service;
2. Right-click the service and select "Start".

Start MySQL in the terminal:

1. Open the command prompt or terminal window;
2. Switch to the bin directory of the MySQL installation directory;

3. Run the following command to start MySQL:

   mysqld --console

4. When the MySQL process outputs "ready for connections" in the terminal, it means MySQL It has started successfully and you can proceed to the next step.

4. Restore MySQL data

After completing the above steps, you can use the backup file to restore the data to the new MySQL path. The specific method to restore data is as follows:

1. Open the command prompt or terminal window;
2. Switch to the bin directory of the MySQL installation directory;

3. Run the following command to restore the backup file back to MySQL:

   mysql -u username -p password < backup.sql

4. When prompted for a password, enter the MySQL password. Then wait for the command to complete the data recovery operation.

At this point, the MySQL path modification is completed. Through the three steps of backing up data, modifying the path, and restoring data, we can successfully modify the MySQL path to the path we want.

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