mysql - IN() が mysql ストアド プロシージャで機能しない

Question

DELIMITER $$

USE `employee`$$

DROP PROCEDURE IF EXISTS `selectemployeebyids`$$

CREATE DEFINER=`root`@`localhost` PROCEDURE `selectemployeebyids`(IN empid VARCHAR(100))
BEGIN
    SELECT empname,salary,department from emp where empid IN (empid) ORDER BY empid;
    END$$

DELIMITER ;

誰でも私を助けてくれませんか

よろしく

まんじゅうK

Answer 1

多くのことを試した後、 の代わりに が見つかりIN()ましFIND_IN_SET()た。

DELIMITER $$

USE `employee`$$

DROP PROCEDURE IF EXISTS `selectemployeebyids`$$

CREATE DEFINER=`root`@`localhost` PROCEDURE `selectemployeebyids`(IN empid VARCHAR(100))
BEGIN
    SELECT empname,salary,department from emp where empid FIND_IN_SET(empid) ORDER BY empid;
    END$$

DELIMITER ;

Answer 2

これを試して

DELIMITER $$ 

USE `employee`$$ 

DROP PROCEDURE IF EXISTS `selectemployeebyids`$$ 

CREATE DEFINER=`root`@`localhost` PROCEDURE `selectemployeebyids`(IN empid_in VARCHAR(100)) 
BEGIN 
    SELECT empname,salary,department from emp 
        where concat(',',empid_in,',') like concat('%,'cast  (empid as varchar(10)),',%')
        ORDER BY empid; 
   END$$ 


 DELIMITER ;