Invokes the stored procedure or function specified by the Stored Procedure Resource.
Any in parameters in the resource are replaced with values from mapped form fields prior to calling the stored procedure.
Any mapped form fields for out parameters in the resource are replaced with values from the stored procedure after it is called.
Any in parameters in the resource are replaced with values from mapped form fields prior to calling the stored procedure. Any mapped form fields for out parameters in the resource are replaced with values from the stored procedure after it is called.
Further documentation.