- Data Source Name. A DSN is the logical name used to represent an ODBC
connection. Within ODBC each DSN is assigned
to a specific ODBC driver and often to a specific database. Each DSN
maintains information about the configuration of an ODBC driver. DSNs
types fall into one of the following categories:
- User DSN - DSNs which are specific to the current user.
- System DSN - DSNs which are available to all users on the
- File DSN - A DSN for which configuration details are stored in a
file rather than in the registry. A file DSN is available to all
users who have access to the file.
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