Data Source Name (DSN)

A Data Source Name (DSN) is a configuration setting that allows applications to connect to a specific database easily. Think of it as a shortcut or address book entry that contains information such as the database’s location, type, and login details. When an application needs to access data, it uses the DSN to find and securely connect to the correct database without needing to specify all connection details each time. This streamlines database access and helps manage connections consistently across different applications and environments.