mysql - 在存储过程中使用游标的语法错误

Question

我在整个网站上搜索了答案，但没有一个能解决我的问题，所以我要用一个新线程发布我的错误。

我的代码，

DELIMITER $$

USE `DB`$$

DROP PROCEDURE IF EXISTS `GET_Summary`$$

CREATE DEFINER=`connect`@`%` PROCEDURE `GET_Summary`(IN pDateFrom DATE,IN pDateTo DATE)

ROOT:BEGIN

    DECLARE pTotal,pShortCode,pSignUp,pUnSub,pJunk INT;
    DECLARE pCOM NVARCHAR(10);
    DECLARE no_more_rows BOOLEAN;

    CREATE TEMPORARY TABLE TMOMain
    (GrandTotal INT,ShortCode INT,COM NVARCHAR(10),SignUp INT,UnSub INT, Junk INT);  

    DECLARE MoMainCur CURSOR FOR
    SELECT COUNT(*),shortcode,(CASE WHEN ComID= 1 THEN 'A'
    WHEN ComID= 2 THEN 'B' WHEN ComID= 3 THEN 'C' ELSE 'UV' END) AS COM
    FROM tbl_inbox 
    INNER JOIN tbl_keyword ON keywordid = recvkeyword 
    WHERE recvDate >='2011-11-15'  AND recvDate < '2011-11-16' 
    GROUP BY shortcode,COM;

    DECLARE CONTINUE HANDLER FOR NOT FOUND
    SET no_more_rows = TRUE;    

    OPEN MoMainCur;

    read_loop:LOOP
    FETCH MoMainCur INTO pTotal,pShortCode,pCOM ;

    INSERT INTO TMOMain
    VALUES
    (pTotal,pShortcode,pCOM ,0,0,0);
    IF no_more_rows THEN
        CLOSE MoMainCur;
        LEAVE the_loop;

    END LOOP;

    -- CLOSE MoMain;

    SELECT * FROM TMOMain;
    END$$
DELIMITER ;

MySQL 5.1 版

错误信息:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DECLARE MoMainCur CURSOR FOR

Answer 1

来自fine manual :

DECLARE is permitted only inside a BEGIN ... END compound statement and must be at its start, before any other statements.

Declarations must follow a certain order. Cursors must be declared before declaring handlers. Variables and conditions must be declared before declaring cursors or handlers.

强调我的。

将您的 CREATE TEMPORARY TABLE TMOMain 移动到所有DECLARE之后。