----Mostrar los caballos que no han participado en ninguna carrera

--If OBJECT_ID('Cinactivo','P') IS NOT NULL--DROP PROCEDURE Cinactivo

Create Procedure Cinactivo

@IDC numeric(6)AsBegin

Declare @CARRERAC Cursor Set @CARRERAC = Cursor For Select ID_Caballo from CaballosOpen @CARRERAC

Fetch next from @CARRERAC into @IDCWhile @@FETCH_STATUS=0

BeginIf(Select ID_Caballo from Caballo_Carrera where ID_Caballo =@IDC) IS NULLSelect Nombre From Caballos Where ID_Caballo=@IDC

Fetch Next from @CARRERAC into @IDCEndClose @CARRERACDeallocate @CARRERAC

End

Go

EXEC Cinactivo@IDC = NULL