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srv-rpcparams-extended-stored-procedure-api.md

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title description author ms.author ms.date ms.service ms.subservice ms.topic helpviewer_keywords dev_langs apilocation apiname apitype
srv_rpcparams (Extended Stored Procedure API)
Learn about srv_rpcparams and how it can return the number of parameters for the current remote stored procedure.
VanMSFT
vanto
03/04/2017
sql
stored-procedures
reference
srv_rpcparams
C++
opends60.dll
srv_rpcparams
DLLExport

srv_rpcparams (Extended Stored Procedure API)

[!INCLUDE SQL Server]

Important

[!INCLUDEssNoteDepFutureAvoid] Use CLR integration instead.

Returns the number of parameters for the current remote stored procedure.

Syntax

  
int srv_rpcparams ( SRV_PROC *  
srvproc   
);  

Arguments

srvproc
Is a pointer to the SRV_PROC structure that is the handle for a particular client connection (in this case, the handle that received the remote stored procedure). The structure contains information that the Extended Stored Procedure API library uses to manage communication and data between the application and the client.

Returns

The number of parameters in the remote stored procedure. If there are no parameters in the remote stored procedure or if there is not a current remote stored procedure, -1 is returned and an information error occurs.

Remarks

This function returns the number of parameters in the current remote stored procedure. It is usually called from the remote stored procedure.

When a remote stored procedure call is made with parameters, the parameters can be passed either by name or by position (unnamed). If the remote stored procedure call was made with some parameters passed by name and some passed by position, an error occurs. When this error occurs, the remote stored procedure handler is called, but it does not receive the parameters and srv_rpcparams returns 0.

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 this Microsoft Web site.