Returns information about the connection properties for the unique connection that a request came in on.
CONNECTIONPROPERTY ( property )
Is the property of the connection. property can be one of the following values.
|net_transport||nvarchar(40)||Returns the physical transport protocol that is used by this connection. Is not nullable.|
Return values are: HTTP, Named pipe, Session, Shared memory, SSL, TCP, and VIA.
Note: Always returns Session when a connection has multiple active result sets (MARS) enabled, and connection pooling is enabled.
|protocol_type||nvarchar(40)||Returns the protocol type of the payload. It currently distinguishes between TDS (TSQL) and SOAP. Is nullable.|
|auth_scheme||nvarchar(40)||Returns the SQL Server Authentication scheme for a connection. The authentication scheme is either Windows Authentication (NTLM, KERBEROS, DIGEST, BASIC, NEGOTIATE) or SQL Server Authentication. Is not nullable.|
|local_net_address||varchar(48)||Returns the IP address on the server that this connection targeted. Available only for connections that are using the TCP transport provider. Is nullable.|
|local_tcp_port||int||Returns the server TCP port that this connection targeted if the connection were a connection that is using the TCP transport. Is nullable.|
|client_net_address||varchar(48)||Asks for the address of the client that is connecting to this server. Is nullable.|
|physical_net_transport||nvarchar(40)||Returns the physical transport protocol that is used by this connection. Accurate when a connection has multiple active result sets (MARS) enabled.|
|<Any other string>||Returns NULL if the input is not valid.|
local_net_address and local_tcp_port return NULL in SQL Database V12.
The values that are returned are the same as the options shown for the corresponding columns in the sys.dm_exec_connections dynamic management view. For example:
SELECT ConnectionProperty('net_transport') AS 'Net transport', ConnectionProperty('protocol_type') AS 'Protocol type';