Mysql 设置变量的几种方式

1. 

  SET @Template_Title_L=(SELECT Title FROM AA WHERE ID=1);  

2. 

  DECLARE Article_Title_L VARCHAR(1000);   

  DECLARE Article_URL_L VARCHAR(1000); 

  SELECT IFNULL(Article_Title,''),IFNULL(Article_URL,'')

  INTO Article_Title_L, Article_URL_L

  FROM article_detail WHERE article_detail_id =Article_Detail_ID_In;
3. SELECT @Title:=Title FROM AA WHERE ID=1