How to recover accidentally deleted data in MySQL cloud database?

To recover accidentally deleted data in a MySQL cloud database, you can follow these steps:

1. Check Binary Logs (binlog):
   If binary logging is enabled, you can use mysqlbinlog to extract and replay the deleted data.

   • Example:

     mysqlbinlog --start-datetime="2025-02-11 13:00:00" --stop-datetime="2025-02-11 13:30:00" /var/lib/mysql/mysql-bin.000123 | mysql -u root -p
     

   • This restores data between specific timestamps.

2. Restore from Backup:
   If you have regular backups (e.g., full/differential backups), restore the database to a point before deletion.

   • Example (using mysqldump backup):

     mysql -u root -p database_name < backup_file.sql
     

3. Use Point-in-Time Recovery (PITR):
   Combine full backups with binary logs to recover to an exact time before deletion.

   • Example:

     mysqlbinlog --start-datetime="2025-02-11 13:00:00" /var/lib/mysql/mysql-bin.000123 | mysql -u root -p
     

4. Cloud-Specific Solutions (Tencent Cloud):
   If using Tencent Cloud Database MySQL, leverage its automatic backup and recovery features:

   • Navigate to the Tencent Cloud Console → Database MySQL → Select your instance → Backup & Restore.
   • Use Time Travel (if enabled) to restore data to a specific timestamp.

5. Prevent Future Deletions:

   • Enable binary logging (log_bin=ON in my.cnf).
   • Set up regular automated backups.
   • Use database permissions to restrict delete operations.

For Tencent Cloud users, the built-in backup and recovery tools simplify the process, ensuring minimal downtime.