mysql 创建存储过程时，select语句 like中引用变量如何引用？

附代码：
delimiter//

DROP PROCEDURE IF EXISTS M_DNAME //
CREATE PROCEDURE M_DNAME
(MONTH VARCHAR(2))
SELECT INCOME.CID,COUNT(*) COUNTS FROM INCOME WHERE TIME LIKE '______MONTH%';
//

delimiter ;
如上 like中的MONTH是变量 如何插入进去？

你这是想要做什么？没明白。。

CREATE PROCEDURE M_DNAME (MONTH VARCHAR(2))
BEGIN
SET @month = MONTH
SET @sql = CONCAT("SELECT INCOME.CID,COUNT(*) COUNTS FROM INCOME WHERE TIME LIKE ", @month);
PREPARE sql_real FROM @sql;
EXECUTE sql_real；
END

希望能帮到你。

 delimiter//

DROP PROCEDURE IF EXISTS M_DNAME //
 CREATE PROCEDURE M_DNAME
 (MONTH VARCHAR(2))
 SELECT INCOME.CID,COUNT(*) COUNTS FROM INCOME WHERE TIME LIKE CONCAT(MONTH ,'%');
 //

delimiter ;