What is stored in the database? The database is accessed by the address

What does the database actually store? are specific files, audio, documents, forms, fields?

Not really.

The address is stored in the database,

For example, users want to see the video, the user through the browser to visit the website of the video site, video Web server to resolve the user's browser request (URL), and then the server access to the video site database server, from the database server to get the video address (path), and then returned to the user browser The user's browser can then use this address to access the video, which completes a network service to view the video.

Feel short and easy to follow me! M_wise