The database icon is a very important icon for those who work in the database management field. It can be used in many ways. Use this icon to indicate a database is being used or will need to be used. Perfect for articles talking about tutorials - video or otherwise that teach about databases.
There are many icons to choose from.
You can use it to illustrate how documents are placed into the database.
You can use it for tutorials or videos on how to Learn Database.
There are different types of database applications, you can use the icon to talk about them.
Related database icons that might be of use are the Add Database, Accept Database, Delete Database icons: