1318 - Incorrect number of arguments for PROCEDURE

问题:

DROP PROCEDURE `ModificarUsuario`// CREATE DEFINER=`root`@`localhost` PROCEDURE `ModificarUsuario`(    IN `Aid` INT,    IN `Aced` VARCHAR(100),    IN `Anombre` VARCHAR(100),     IN `Acargo` VARCHAR(100),     IN `Acedula` VARCHAR(100),     IN `Ausuario` VARCHAR(100),    IN `Apass` VARCHAR(100),    OUT `res` VARCHAR(10) ) BEGIN     SELECT COUNT(usuario) INTO res FROM `usuario` WHERE `cedula`=Aced and `id`<>Aid;     IF  res =0 THEN        UPDATE `usuario` SET cedula=Aced, nombre=Anombre, cargo=Acargo, usuario=Ausuario, contrasena=Apass WHERE cedula=Acedula;     END IF; END 

When I use this procedure I get the error "expected 8, got 7." I don't understand this, if we look at the code there are 7 input parameters and one out parameter. It seems that the out parameter needs to be specified as well when calling the procedure, any idea why?

回答1:

You need to reference the out parameter

CALL ModificarUsuario('6','9123','Sandra','Profesor','12345','sandru','sdf',@a) 

to see result execute Select @a or Select res

文章来源: 1318 - Incorrect number of arguments for PROCEDURE