Data source name

lastmod 2026-11-10created 2020-03-222 edits

A Data source name (DSN) is a named bundle of the driver, server address, database name, authentication information, and other details needed to connect to a data source such as a database. In ODBC it is registered as a system, user, or file DSN so that a connection can be made by name alone, and the term is also widely used to mean the entire connection string.