Mysql触发器插入用问号替换unicode（???）

Question

我有2个表homework和trigger。当在homework中插入新行时，我触发它将homework列文本（unicode）插入到trigger表中。在homework表中，unicode是正确的，但在trigger表中，unicode文本正在替换为问号（???）

像这样：

Eng- ????? ????? ????? q???????????    f???? ?????? ?????. (Tamil language test)#Kan: ???? ???? ?????? ????????? ???? ?????????? ????? ??????? #ACC: ???? ???? ?????? ????????? ???? ?????????? ????? ??????? 

trigger表格列collation为utf8_unicode_ci，与homework表格列相同

（来自评论）

CREATE TABLE trigger (
    TriggerId int(100) NOT NULL AUTO_INCREMENT, 
    TableName varchar(200) NOT NULL, 
    Homework mediumtext CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL, 
    SchoolId int(100) NOT NULL, 
    DateTimeRecordInserted timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, 
    PRIMARY KEY (TriggerId), 
    KEY TriggerId (TriggerId)
) ENGINE=InnoDB AUTO_INCREMENT=1247487 DEFAULT CHARSET=latin1

Answer 1

  

DECLARE var_row_data MEDIUMTEXT CHARACTER SET utf8;