Question

我收到以下错误：

[Err] 1349 - View的SELECT包含FROM子句中的子查询

创建此视图时：

  create  view v_rescume_info   as 
   select((case when goods.goods_fee is null then 0 else goods.goods_fee end)
   +(case when rent.rent_fee is null then 0 else  rent.rent_fee end)
   +(case when baoxiao.baoxiao_fee is null then 0 else baoxiao.baoxiao_fee end))
    as rescume_fee,goods.member_id   from (select  sum(product_price * product_quantity) as goods_fee,member_id from product_general_info group by member_id) goods 
    left join (select  sum(house_fee + (case when water_fee is null then 0 else water_fee  end)*water_price 
   +(case when electric_fee is null then 0 else electric_fee  end)*electric_price) rent_fee,member_id from  member_rent_info group by member_id) rent 
    on  goods.member_id  = rent.member_id
   left join (select  sum(finishedoff_price) as baoxiao_fee ,member_id from  member_finishedoff_info group by member_id) baoxiao

Answer 1

那太乱了。为了帮助您，您可以使用合并

替换那些“当......然后”的情况

 create  view v_rescume_info as 
 select(
 Coalesce(goods.goods_fee,0) + Coalesce(rent.rent_fee, 0) + 
 Coalesce(baoxiao.baoxiao_fee,0) as rescume_fee,
  goods.member_id  from v_newView1

为什么我把v_newView放在这里？嗯..你真的想从另一个选择中选择。你可以跨表，但它从来没有这样对我。这看起来像Transact-SQL而不是MySQL sintax。

在创建视图之前，请在外面测试这些视图。一旦你得到了结果，你就应该把“Create View foo as”。

对于我所看到的内容，您需要创建另一个视图“my”v_newView1，以便从子查询中获取结果。我建议你使用连接功能（左，右，内）来达到你想要的目的。

没有数据库，很难找出你的问题所在。调试时也使用多行。查看女巫线在哪里产生错误确实很有帮助。

mysql create view [Err] 1349 - View的SELECT包含FROM子句中的子查询

1 个答案: