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我想创建一个查询以将每个唯一条目从一个表移动到另一个临时表。我创建了以下查询来获取唯一条目：

select date, messageType, zCampaignId, isSenderPolicy, sender, recipient, policy, operator, country, zNumber 
from topcampaigns_HOUR 
group by date, messageType, zCampaignId, isSenderPolicy, sender, recipient, policy, operator, country, zNumber 
having count(*) = 1;

它返回很多结果：

/* Affected rows: 0  Found rows: 473  Warnings: 0  Duration for 1 query: 0.000 sec. (+ 0.016 sec. network) */

但是，当我将其放入更新中时，我似乎无法更新 tmp 表：

UPDATE topcampaigns_HOUR_tmp as b 
INNER JOIN (
   select date, messageType, zCampaignId, isSenderPolicy, sender, recipient, policy, operator, country, zNumber 
   from topcampaigns_HOUR 
   group by date, messageType, zCampaignId, isSenderPolicy, sender, recipient, policy, operator, country, zNumber 
   having count(*) = 1) as a 
SET 
b.date=a.date, 
b.messageType=a.messageType, 
b.zCampaignId=a.zCampaignId, 
b.isSenderPolicy=a.isSenderPolicy, 
b.sender=a.sender, 
b.recipient=a.recipient, 
b.policy=a.policy,
b.operator=a.operator,
b.country=a.country, 
b.zNumber=a.zNumber;

这导致：

/* Affected rows: 0  Found rows: 0  Warnings: 0  Duration for 1 query: 00:04:25 */

我尝试了很多事情，比如使用：

UPDATE topcampaigns_HOUR_tmp JOIN (select date, messageType, zCampaignId, isSenderPolicy, sender, recipient, policy, operator, country, zNumber from topcampaigns_HOUR group by date, messageType, zCampaignId, isSenderPolicy, sender, recipient, policy, operator, country, zNumber having count(*) = 1) a SET 
topcampaigns_HOUR_tmp.date=a.date, 
topcampaigns_HOUR_tmp.messageType=a.messageType, 
topcampaigns_HOUR_tmp.zCampaignId=a.zCampaignId, 
topcampaigns_HOUR_tmp.isSenderPolicy=a.isSenderPolicy, 
topcampaigns_HOUR_tmp.sender=a.sender, 
topcampaigns_HOUR_tmp.recipient=a.recipient, 
topcampaigns_HOUR_tmp.policy=a.policy, 
topcampaigns_HOUR_tmp.operator=a.operator, 
topcampaigns_HOUR_tmp.country=a.country, 
topcampaigns_HOUR_tmp.zNumber=a.zNumber;

我又得到了：

/* Affected rows: 0  Found rows: 0  Warnings: 0  Duration for 1 query: 00:03:42 */

topcampaigns_HOUR_tmp 表似乎永远不会更新。

我究竟做错了什么？

一个

4

1 回答 1

2

如果您要添加需要的行INSERT，并且要从查询结果中添加行，则需要INSERT ... SELECT。尝试这样的事情：

INSERT INTO topcampaigns_HOUR_tmp (
   date, messageType, zCampaignId, isSenderPolicy, sender,
   recipient, policy, operator, country, zNumber)
select
   date, messageType, zCampaignId, isSenderPolicy, sender,
   recipient, policy, operator, country, zNumber 
from topcampaigns_HOUR 
group by
   date, messageType, zCampaignId, isSenderPolicy, sender,
   recipient, policy, operator, country, zNumber 
having count(*) = 1
于 2013-08-07T15:22:32.210 回答