在基于条件的Mysql触发器中使用Select INTO语句

Question

我想写一个触发器。 触发器以以下方式工作：

当表R_published获取一个新条目时，根据条目（R_published.whichPublishable）中的列值，它需要将行分别从project_task_goodread_master表或project_document_master表复制到R_publishedGoodReads或R_publishedDocuments表中。

我编写了以下触发器，但出现了错误：“＃1327-未声明的变量：R_publishedGoodReads”

CREATE TRIGGER trigger_after_published

    AFTER INSERT ON R_published

    FOR EACH ROW

    BEGIN

    IF (NEW.whichPublishable=1) THEN

        SELECT *  INTO R_publishedGoodReads FROM project_task_goodread_master 
WHERE

 goodReadID= new.publishedItemId;

    ELSEIF (NEW.whichPublishable=2) THEN 

      SELECT * INTO R_publishedDocuments FROM project_document_master where 

 documentID=new.publishedItemId;

      END IF 

END 

语法有什么问题吗？ 我需要声明要用于插入的表名吗？ 谢谢。

Answer 1

MySQL不支持SELECT ... INTO TABLE。 参见MySQL文档

Answer 2

请尝试：

IF (NEW.whichPublishable=1) THEN
    INSERT INTO R_publishedGoodReads (col1, col2...)
    SELECT col1, col2... FROM project_task_goodread_master 
    WHERE goodReadID= new.publishedItemId;