DSN stands for "Data Source Name." It is a term used in computer programming and database management to refer to a logical name or identifier that represents a specific database or data source. A DSN is primarily used to establish a connection between an application or programming language and a database management system (DBMS).
In simpler terms, a DSN acts as a bridge or intermediary between an application and a database, allowing them to communicate with each other. Instead of specifying detailed connection information, such as the server name, port number, or username/password, every time a connection is established, the application can simply reference the DSN.
The DSN contains essential information about the data source, including the server address, network protocol to be used, database name, authentication credentials, and other connection parameters. It provides a standardized and abstract way of managing and accessing databases, regardless of the underlying DBMS.
One of the key benefits of using DSNs is their ability to facilitate easier management of connections. If a connection parameter needs to be changed, for instance, the credentials or server address, it can be modified in a central location (the DSN) rather than updating every instance of the connection in multiple application or program files.
Overall, a DSN simplifies and streamlines the process of connecting to databases, enhances application flexibility, and allows for easier maintenance and management of database connections in programming environments.
