mysql创建存储过程中的问题

Posted 2020-06-24 SherlockHolmes

1.在创建存储过程成功后，使用call 存储过程名执行时报错：

Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT)错误。

解决方法：检查存储过程使用到的表格的编码方式，包括字段和表格本身。最后统一编码方式。在类型是属于字符、字符串这等类型的后面加上 CHARSET utf8

例：

DELIMITER $$

 

USE `mall`$$

 

DROP PROCEDURE IF EXISTS `Prc_AddArticleInfo`$$

 

CREATE DEFINER=`root`@`localhost` PROCEDURE `Prc_AddArticleInfo`(snames TEXT CHARSET utf8,contents TEXT CHARSET utf8,createdtimes DATETIME,voidtimes DATETIME,urls TEXT CHARSET utf8,cags VARCHAR(32) CHARSET utf8,usernames VARCHAR(32) CHARSET utf8)

BEGIN

DECLARE userids INT DEFAULT 0;

DECLARE genreids INT DEFAULT 0;

DECLARE sname TEXT CHARSET utf8 DEFAULT NULL;

DECLARE scontent TEXT CHARSET utf8 DEFAULT NULL;

DECLARE screatedtime TEXT CHARSET utf8 DEFAULT NULL;

DECLARE svoidtime TEXT CHARSET utf8 DEFAULT NULL;

DECLARE surl TEXT CHARSET utf8 DEFAULT NULL;

DECLARE username VARCHAR(32) CHARSET utf8 DEFAULT NULL;

DECLARE cag VARCHAR(32) CHARSET utf8 DEFAULT NULL;

SET sname=snames;

SET scontent=contents;

SET screatedtime=createdtimes;

SET svoidtime=voidtimes;

SET surl=urls;

SET username=usernames;

SET cag=cags;

SELECT id INTO genreids FROM genres WHERE NAME=cag;

SELECT admin_user_id INTO userids FROM admin_user WHERE admin_user_name=username;

INSERT INTO article(NAME,content,createdtime,voidtime,url,genreid,userid) VALUES(sname,scontent,screatedtime,svoidtime,surl,genreids,userids);

END$$

 

DELIMITER ;

 

2.mysql报Fatal error encountered during command execution的解决办法

连接字符串里加上

Allow User Variables=True

解决。

否则时不时的报错，存储过程名长一点也报错，又有时报有时不报，参数传1位数就正常2位数就报错等……