Often we can, but it is always better to have a backup. If we cannot restore a crashed database in its entirety, we can often restore most or parts of it and give you access to that so a developer can fill in the spots. You may also have a local automated backup configured as well without knowing about it, and we will look for these. Periodically, backups are performed automatically by your content management system, the control panel on the server, or the control panels auto-installer, such as Softaculous.  If you do not have a backup plan in place, please consider using our Linux Server Backup, which you can purchase as an add-on when you buy management.