How to recover data from a corrupt MySQL database?

[kiran95]

Recovering data from a corrupt MySQL database can be done using both manual methods and specialized tools. Here’s how you can attempt to restore your database manually:

Manual Method to Recover Corrupt MySQL Database​

1. Check and Repair Tables: Use the MySQL command:
   
   CHECK TABLE table_name;
   REPAIR TABLE table_name;
   This helps identify and fix corruption in individual tables.
2. Use MySQL Dump: If the database is accessible, create a backup using:
   
   mysqldump -u root -p --all-databases > backup.sql
   Then, restore it with:
   mysql -u root -p < backup.sql
3. Restart MySQL in Safe Mode: Run MySQL with the --skip-grant-tables option to access the database and extract data.
4. Check MySQL Logs: Reviewing error logs can help identify the cause of corruption and possible fixes.

Automated Recovery with DRS Softech MySQL Database Recovery Tool​

If manual methods fail, you can use DRS Softech MySQL Database Recovery Tool, which helps repair corrupt MySQL databases efficiently. It can recover all database objects, including tables, keys, and triggers, in a few simple steps. This tool ensures minimal downtime and prevents data loss, making recovery quick and hassle-free.

 

[Kikabatica]

To recover data from a corrupt MySQL database, first try using mysqlcheck --repair or restore from backups if available. If backups are missing, iBoysoft Data Recovery for Windows can scan the raw database files (like .frm and .ibd) to extract readable data—just point it at your MySQL data directory. Always recover to a different drive to avoid overwriting.