Three things you should never put in your database 14 years ago
You can still store files (images, documents, etc...) in the database as a backup.
Let's imagine the following scenario. If your database crash and you lose everything there is good chance you can't run your application any more (if you don't have backups), but you still have your images! great! what do you do with them. If you lose your files but not the database, cool you still have the paths of all your files that have been lost in the database, so now what?!
The idea is to keep files (such as images) in the database to be able to pull them down on the file system and backup your database. Plus it's not always stored in the database, for example with MSSQL you can use file stream to store document.