How to recover data if MySQL is not backed up?

Without a backup, recovering data in MySQL could potentially be more challenging. The following are some possible methods, however, success in recovery is not guaranteed.

1. Using MySQL log files: If binary log files are enabled, you can attempt to use these files to recover data. This typically requires some expertise and experience to execute, and might not be able to fully recover all data.
2. Utilize data recovery tools: There are some third-party data recovery tools that can be used to attempt to recover data from damaged MySQL data files. These tools may require payment and the results may not be entirely reliable.
3. Seek help from a professional data recovery company: If the data is very important and the above methods cannot recover it, consider seeking help from a professional data recovery company. They typically have more advanced technology and tools that can better assist in recovering lost data.

No matter which method is used, data should be regularly backed up before any data loss occurs, to prevent similar situations from happening again.