Databases are organized collections of information that you can search on a variety of fields, like title and author's name. iTunes is a database and so is Amazon. Even your contacts list in your phone is a type of mini database. The Library has databases of articles from newspapers, magazines and journals. We also have databases of streaming videos, music and e-books. The difference between our databases and iTunes or Amazon is that our stuff is free for you to use.
You can browse the library's databases here: https://library.cod.edu/az.php