How Can I Restore a MySQL Database from Its Physical Files?

Restoring a MySQL Database from Physical Files

Restoring a MySQL database from a collection of physical files is feasible, but requires cautious handling. Let's delve into the specifics:

File Structure:

A MySQL MyISAM table consists of three file types:

• FRM: Table definition
• MYD: Data storage
• MYI: Index storage

Restoration Process:

To restore your database from the provided files, follow these steps:

1. Copy the Files:
   Close the MySQL server and copy the FRM, MYD, and MYI files for each table into the appropriate database folder (typically /var/lib/mysql/ on Linux).
2. Restart the Server:
   Restart the MySQL server.

Additional Notes:

• The restoration process assumes the files are intact and belong to the same database.
• Ensure the server has sufficient permissions to access the restored files.
• If the restored files contain data that conflicts with existing tables, MySQL may reject the restore operation.
• For non-MyISAM tables or complex databases, alternative recovery methods may be necessary.

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