最佳答案
MySQL上的错误消息:
Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '='
我已经通过其他几个职位,并没有能够解决这个问题。 受影响的部分与此类似:
CREATE TABLE users (
userID INT UNSIGNED NOT NULL AUTO_INCREMENT,
firstName VARCHAR(24) NOT NULL,
lastName VARCHAR(24) NOT NULL,
username VARCHAR(24) NOT NULL,
password VARCHAR(40) NOT NULL,
PRIMARY KEY (userid)
) ENGINE = INNODB CHARACTER SET utf8 COLLATE utf8_unicode_ci;
CREATE TABLE products (
productID INT UNSIGNED NOT NULL AUTO_INCREMENT,
title VARCHAR(104) NOT NULL,
picturePath VARCHAR(104) NULL,
pictureThumb VARCHAR(104) NULL,
creationDate DATE NOT NULL,
closeDate DATE NULL,
deleteDate DATE NULL,
varPath VARCHAR(104) NULL,
isPublic TINYINT(1) UNSIGNED NOT NULL DEFAULT '1',
PRIMARY KEY (productID)
) ENGINE = INNODB CHARACTER SET utf8 COLLATE utf8_unicode_ci;
CREATE TABLE productUsers (
productID INT UNSIGNED NOT NULL,
userID INT UNSIGNED NOT NULL,
permission VARCHAR(16) NOT NULL,
PRIMARY KEY (productID,userID),
FOREIGN KEY (productID) REFERENCES products (productID) ON DELETE RESTRICT ON UPDATE NO ACTION,
FOREIGN KEY (userID) REFERENCES users (userID) ON DELETE RESTRICT ON UPDATE NO ACTION
) ENGINE = INNODB CHARACTER SET utf8 COLLATE utf8_unicode_ci;
我使用的存储过程是这样的:
CREATE PROCEDURE updateProductUsers (IN rUsername VARCHAR(24),IN rProductID INT UNSIGNED,IN rPerm VARCHAR(16))
BEGIN
UPDATE productUsers
INNER JOIN users
ON productUsers.userID = users.userID
SET productUsers.permission = rPerm
WHERE users.username = rUsername
AND productUsers.productID = rProductID;
END
我正在用PHP进行测试,但SQLYOG也出现了同样的错误。 我还测试了重新创建整个数据库,但效果不佳。
任何帮助都将不胜感激。