带有SELECT/JOIN的触发器插入

Question

我写了一个触发器INSERT AFTER：，其中I在SELECT和JOIN之内。

DROP TRIGGER IF EXISTS `InsertArticle`; 
DELIMITER // 
CREATE TRIGGER `InsertArticle` AFTER INSERT ON `article` 

FOR EACH ROW 
    insert into log (LogTime, LogIdNote, LogName, LogType, LogIdUser, logTypeCategory, LogTypeUser, LogUrl) 
    select NEW.ArticleTime, NEW.idArticle, NEW.ArticleName, 1, NEW.ArticleToUserID, NEW.ArticleCategory, u.UsersTypeAccount, ct.URLCategorysubscribetotype 
    from users u where u.idUsers = NEW.ArticleToUserID LEFT JOIN categorysubscribetotype ct ON ct.CategoryTypeCategorysubscribetotype = 1; 
END 
// 
DELIMITER ; 

当我试图创建触发器，我得到错误1422。 可能是我有一个错误的触发sintax？

Answer 1

试试这个：

DROP TRIGGER IF EXISTS `InsertArticle`; 
DELIMITER // 
CREATE TRIGGER `InsertArticle` AFTER INSERT ON `article` 

FOR EACH ROW 
    insert into log (LogTime, LogIdNote, LogName, LogType, LogIdUser, logTypeCategory, LogTypeUser, LogUrl) 
    select NEW.ArticleTime, NEW.idArticle, NEW.ArticleName, 1 as LogType, NEW.ArticleToUserID, NEW.ArticleCategory, u.UsersTypeAccount, ct.URLCategorysubscribetotype 
    from users u LEFT JOIN categorysubscribetotype ct ON ct.CategoryTypeCategorysubscribetotype = 1 where u.idUsers = NEW.ArticleToUserID; 
END 
// 
DELIMITER ;