# How do I fix the "Unknown Database" error when connecting to MySQL?

```
ERROR 1049 (42000): Unknown database 'default'
```

An `Unknown Database` error occurs when:

- You connect to the wrong cluster.
- You connect to a database that doesn’t exist in your specified cluster.

If you are getting this error:

- Verify that you are using the correct hostname to connect.
- Verify that you’ve created the database in your cluster of choice.

## Related Topics

[How do I fix the "Out of sort memory" error?](https://docs.digitalocean.com/support/how-do-i-fix-the-out-of-sort-memory-error/index.html.md): Adjust the sort\_buffer\_size value while assessing its impact on memory consumption and query performance.

[How do I fix the "Host is Blocked" error when connecting to MySQL?](https://docs.digitalocean.com/support/how-do-i-fix-the-host-is-blocked-error-when-connecting-to-mysql/index.html.md): Check for query timeouts and ensure your network connection is stable.

[How do I fix the "Unknown Host" error when connecting to MySQL?](https://docs.digitalocean.com/support/how-do-i-fix-the-unknown-host-error-when-connecting-to-mysql/index.html.md): Verify the hostname is correct and check for DNS resolution issues.