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MySQL触发器连接字符串_Mysql_String_Triggers_Concatenation - Fatal编程技术网
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MySQL触发器连接字符串

mysql string triggers

MySQL触发器连接字符串,mysql,string,triggers,concatenation,Mysql,String,Triggers,Concatenation,问题是当我试图设置CAD变量时 下面是我的示例代码： BEGIN DECLARE vUser varchar(50); set @cad: = "The user "+ vUser+ " add the jurisdiction "+ NEW.name; INSERT INTO ActivyLog VALUES (null,'Jurisdiction added', @cad, now(), now(), '1' , '1' ); END 试试这个它确实有效，这是正

问题是当我试图设置CAD变量时

下面是我的示例代码：

BEGIN
  DECLARE vUser varchar(50);

  set @cad: = "The user "+ vUser+ " add the jurisdiction "+ NEW.name;


  INSERT INTO ActivyLog
  VALUES
  (null,'Jurisdiction added', @cad, now(), now(), '1' , '1' );

END
试试这个

它确实有效，这是正确的答案。康考特把弦聚在一起。 
CONCAT("The user ", vUser, " add the jurisdiction ", NEW.name)