srv_pfield (Extended Stored Procedure API)

중요:
Microsoft SQL Server의 이후 버전에서는 이 기능이 제거됩니다. 새 개발 작업에서는 이 기능을 사용하지 말고, 현재 이 기능을 사용하는 응용 프로그램은 가능한 한 빨리 수정하십시오. Use CLR integration instead.

Returns information about a database connection.

구문

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

Arguments

• srvproc
  Pointer identifying a database connection.

• field
  Specifies data on the connection to return.

  Value	Returns
  SRV_APPLNAME	The application name provided by the client when it established the connection.
  SRV_BCPFLAG	A flag that is TRUE if the client is preparing for a bulk copy operation; otherwise, FALSE.
  SRV_CLIB	The name of the library that enables the client to talk to a server.
  SRV_CPID	The client process ID on the client source computer.
  SRV_HOST	The name of the client's machine provided by the client when it established the connection.
  SRV_LIBVERS	The version of the client library.
  SRV_LSECURE	A flag. TRUE if the connection used integrated security to login.
  SRV_NETWORK_MODULE	The name of the Net-Library DLL used by the connection.
  SRV_NETWORK_VERSION	The version of the Net-Library DLL used by the connection.
  SRV_NETWORK_CONNECTION	The connection string passed to the Net-Library DLL used for the current srvproc connection.
  SRV_PIPEHANDLE	A 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_RMTSERVER	The server from which the client process is logged in. If the login is from a client, this value is an empty string.
  SRV_ROWSENT	The number of rows already sent by srvproc for the current set of results.
  SRV_SPID	The 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_CODEPAGE	Codepage that the server uses to interpret multbyte data.
  SRV_STATUS	The current status of srvproc: running or closed
  SRV_TYPE	The 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_USER	The 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.

Returns

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.

보안 정보:
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 this Microsoft Web site.