mysql 存储过程的问题

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一开始用phpMyAdmin来执行，后来出现一堆错误，后来去掉了begin,end之后可以正常执行，但要执行存储过程，在phpMyAdmn中不行，而在mysql命令行文本框中就可以。
接下来又遇到更难的问题，在存储过程中加入预处理语句，更不行了，在mysql命令行文本框下执行同样，下面的运行记录，给大家参考，能否有高手来帮助。
代码如下：

mysql CREATE PROCEDURE catalog_get_products_in_category(
- IN inCategoryId INT, IN inShortProductDescriptionLength INT,
- IN inProductsPerPage INT, IN inStartItem INT)
- begin
- SELECT p.product_id, p.name,IF(LENGTH(p.description) = inShortProductD
escriptionLength, p.description,
- CONCAT(LEFT(p.description, inShortProductDescriptionLength),'...')) AS
description, p.price, p.discounted_price, p.thumbnail
- FROM product p INNER JOIN product_category pc ON p.product_id = pc.pro
duct_id
- WHERE pc.category_id = inCategoryId
- ORDER BY p.display DESC
- LIMIT inStartItem;inProductsPerPage;
- end$$
ERROR 1064 (42000): 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 'inSta
rtItem;inProductsPerPage;
end' at line 10

//原本的存储过程语句
EATE PROCEDURE catalog_get_products_in_category(
IN inCategoryId INT, IN inShortProductDescriptionLength INT,
IN inProductsPerPage INT, IN inStartItem INT)
BEGIN
PREPARE statement FROM
"SELECT p.product_id, p.name,IF(LENGTH(p.description) = ?, p.description,
CONCAT(LEFT(p.description, ?),'...')) AS description, p.price, p.discounted_price, p.thumbnail
FROM product p INNER JOIN product_category pc ON p.product_id = pc.product_id
WHERE pc.category_id = ?
ORDER BY p.display DESC
LIMIT ?, ?";
SET @p1 = inShortProductDescriptionLength;
SET @p2 = inShortProductDescriptionLength;
SET @p3 = inCategoryId;
SET @p4 = inStartItem;
SET @p5 = inProductsPerPage;
EXECUTE statement USING @p1, @p2, @p3, @p4, @p5;
END$$

mysql delimiter $$
mysql CREATE PROCEDURE catalog_get_products_in_category(
- IN inCategoryId INT, IN inShortProductDescriptionLength INT,
- IN inProductsPerPage INT, IN inStartItem INT)
- BEGIN
- PREPARE statement FROM
- "SELECT p.product_id, p.name,IF(LENGTH(p.description) = ?, p.descript
ion,
" CONCAT(LEFT(p.description, ?),'...')) AS description, p.price, p.disco
unted_price, p.thumbnail
" FROM product p INNER JOIN product_category pc ON p.product_id = pc.pro
duct_id
" WHERE pc.category_id = ?
" ORDER BY p.display DESC
" LIMIT ?, ?";
- SET @p1 = inShortProductDescriptionLength;
- SET @p2 = inShortProductDescriptionLength;
- SET @p3 = inCategoryId;
- SET @p4 = inStartItem;
- SET @p5 = inProductsPerPage;
- EXECUTE statement USING @p1, @p2, @p3, @p4, @p5;
- END$$
ERROR 1314 (0A000): PREPARE is not allowed in stored procedures

上面有两个存储过程，一个不用预处理语句，一个用了预处理语句，
之后，向作者发过邮件，没有答复，又给mysql官方发过邮件，同样没答复。现今只能求助诸位高人。