MySQL更新失败，带有子查询

Question

I'm having trouble with an update query. So here's the deal.

I have 2 tables, Article and Articleredefenition .

In Article , I want to add the prices from Articleredefenition , however I fail to complete it. I also want to add the products from id 300 until 620 and when there's no price filled in in the table of article

update Article
set Article.Price = (
select b.price
from ArticleRedefinition b, Article
where Article.ArticleId = b.ArticleId and  b.ArticleId > 300 and Article.ArticleId < 620
  and Article.Price is NULL and b.ConfigurationId = 27 )

Thanks for your help in advance!

Answer 1

 UPDATE Article a 
    INNER JOIN ArticleRedefinition b 
    ON a.ArticleId = b.ArticleId 
    SET a.Price = b.Price 
    WHERE a.Price is NULL 
    AND (a.ArticleId BETWEEN 300 AND 620)

Thanks