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CONNECTIONPROPERTY (Transact-SQL)

Returns information about the connection properties for the unique connection that a request came in on.

Topic link iconTransact-SQL Syntax Conventions

Syntax

CONNECTIONPROPERTY ( property )

Arguments

  • property
    Is the property of the connection. property can be one of the following values.

    Value

    Data type

    Description

    net_transport

    nvarchar(40)

    Returns the physical transport protocol that is used by this connection. Is not nullable.

    NoteNote
    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.

    <Any other string>

     

    Returns NULL if the input is not valid.

Remarks

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'