srv_pfield (Extended Stored Procedure API)

 
System_CAPS_ICON_important.jpg Important


This feature will be removed in a future version of Microsoft SQL Server. Do not use this feature in new development work, and modify applications that currently use this feature as soon as possible. Use CLR integration instead.

Returns information about a database connection.

  
DBCHAR * srv_pfield (  
SRV_PROC *  
srvproc  
,  
int   
field  
,  
int *  
len  
);  

srvproc
Pointer identifying a database connection.

field
Specifies data on the connection to return.

ValueReturns
SRV_APPLNAMEThe application name provided by the client when it established the connection.
SRV_BCPFLAGA flag that is TRUE if the client is preparing for a bulk copy operation; otherwise, FALSE.
SRV_CLIBThe name of the library that enables the client to talk to a server.
SRV_CPIDThe client process ID on the client source computer.
SRV_HOSTThe name of the client's machine provided by the client when it established the connection.
SRV_LIBVERSThe version of the client library.
SRV_LSECUREA flag. TRUE if the connection used integrated security to login.
SRV_NETWORK_MODULEThe name of the Net-Library DLL used by the connection.
SRV_NETWORK_VERSIONThe version of the Net-Library DLL used by the connection.
SRV_NETWORK_CONNECTIONThe connection string passed to the Net-Library DLL used for the current srvproc connection.
SRV_PIPEHANDLEA string containing the pipe handle of a connected client, or NULL if the client is connected on a network that does not use named pipes. To use this handle as a valid pipe handle with Microsoft Windows, convert this string to an integer.
SRV_RMTSERVERThe server from which the client process is logged in. If the login is from a client, this value is an empty string.
SRV_ROWSENTThe number of rows already sent by srvproc for the current set of results.
SRV_SPIDThe server thread ID of the srvproc. For extended stored procedures, this value is the same as the kpid column of sys.sysprocesses, and it can change over time.
SRV_SPROC_CODEPAGECodepage that the server uses to interpret multbyte data.
SRV_STATUSThe current status of srvproc: running or closed
SRV_TYPEThe connection type of srvproc. If server is returned, srvproc is from an instance of SQL Server. If client is returned, srvproc is from a DB-Library or ODBC client.
SRV_USERThe user name of the connection.

len
Is a pointer to an int variable that contains the length of the returned field value. If len is NULL, the length of the string is not returned.

A pointer to a null-terminated string containing the current value for the specified field in the SRV_PROC structure. If the field is empty, a valid pointer to an empty string is returned and len contains 0. If the field is unknown, NULL is returned and len contains the value -1.

System_CAPS_ICON_important.jpg Important


You should thoroughly review the source code of extended stored procedures, and you should test the compiled DLLs before you install them on a production server. For information about security review and testing, see the Security Developer Center.

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