When rolling back a cloud database MySQL, whether the current table data will be overwritten depends on the specific rollback operation being performed.
Time-Point Recovery (Full Database Rollback): If you roll back the entire database to a previous point in time, all tables will revert to their state at that moment, overwriting current data. For example, if you accidentally delete records and restore to a backup from an hour ago, all changes made after that hour will be lost.
Table-Level Rollback (Binlog or Transaction Log Recovery): If you selectively restore specific tables using binary logs (binlog) or transaction logs, only the targeted tables will be overwritten, while others remain unchanged. For instance, if a single table was corrupted, you can restore just that table without affecting others.
Tencent Cloud Recommendation:
Tencent Cloud's TencentDB for MySQL supports point-in-time recovery and binlog-based rollback. You can use Database Backup & Restore to recover the entire instance or specific tables. Additionally, TencentDB for MySQL provides automated backups and binlog retention, ensuring data safety and flexible recovery options.
Example:
If you mistakenly truncate a table at 3 PM, you can restore it to its state at 2 PM using binlog replay, while other tables remain unaffected.