What is a DSN or Database Source Name?

A data source name, also called the DSN, is a data structure that provides information on a certain database.  This database usually includes an open database community server that it requires to function effectively.  A data source name, which is usually embedded in a registry or a text file, includes information such as the name, the directory as well as the driver of the database.  The DSN also includes the name and password of the user, which also depends on the DSN type.  Most developer [...]