条件失败的情况下的一个条款＆＃39;声明

Question

DELIMITER $$

USE `mg_ims`$$

DROP PROCEDURE IF EXISTS `sp_get_drop_down_data`$$

CREATE DEFINER=`root`@`localhost` PROCEDURE `sp_get_drop_down_data`(

IN _name VARCHAR(15))

BEGIN

        CASE  

            WHEN _name = 'CUSTOMERS' THEN      

                SELECT cust_id,cust_name,address FROM tb_customers; 

            WHEN _name = 'SUPPLIERS' THEN      

                SELECT supp_name FROM tb_suppliers;

            WHEN _name = 'BRANDS' THEN 

                SELECT b.name FROM tb_brands b;

            WHEN _name = 'REGIONAL_OFFICES' THEN 

                SELECT r.name FROM tb_area_offices r;

            WHEN _name = 'SUB_OFFICES' THEN 

                SELECT s.name FROM tb_locations s;

            ELSE 

                SELECT 404 `Code`,'Case not Found' Description; 

        END CASE; 

    END$$


DELIMITER ;

以上所有情况都正常，除了＆＃39; regional_offices＆＃39; ...虽然语法和逻辑是正确的......

Answer 1

您的问题是_name是varchar(15)，但字符串'REGIONAL_OFFICES'长度为16个字符！