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当我执行下面的查询时，我收到此错误：

错误代码：1267。排序规则（latin1_swedish_ci，IMPLICIT）和（utf8_general_ci，COERCIBLE）的非法混合操作'='

如果您需要此代码背后的背景，这里是解释：
MySQL - 如何自动化从最近日期到前一天和日期戳最新数据中减去指标的视图查询

我将“facebook_insight”表排序规则设置为：“utf8_general_ci”，但仍然出现错误。谁能帮我？

MySQL 查询：

CREATE VIEW `facebook_insights` AS  
SELECT  
  t1.id  
, t1.timestamp  
, t1.message  
, t1.posted  
, t1.permalink_url  
, t1.caption  
, t1.link  
, t1.type  
, t1.post_impressions - t2.post_impressions as Impressions  
, t1.post_impressions_organic - t2.post_impressions_organic as Post_Impressions_Organic  
, t1.post_impressions_paid - t2.post_impressions_paid as Post_Impressions_Paid  
, t1.post_engaged_users - t2.post_engaged_users as Post_Engaged_Users  
, t1.post_consumptions - t2.post_consumptions as Post_Consumptions  
, t1.post_negative_feedback - t2.post_negative_feedback as 
Post_Negative_Feedback  
, t1.post_negative_feedback_unique - t2.Post_Negative_Feedback_Unique as 
Post_Negative_Feedback_Unique  
, t1.post_impressions_fan - t2.post_impressions_fan as Post_Impressions_Fan  
, t1.post_impressions_fan_paid - t2.post_impressions_fan_paid as 
Post_Impressions_Fan_Paid  
, t1.post_engaged_fan - t2.Post_Engaged_Fan as Post_Engaged_Fan  
, t1.post_video_complete_views_organic - 
t2.post_video_complete_views_organic as Post_Video_Complete_Views_Organic  
, t1.post_video_complete_views_paid - t2.post_video_complete_views_paid as 
Post_Video_Complete_Views_Paid  
, t1.post_video_views_10s - t2.post_video_views_10s as Post_Video_Views_10s  
, t1.post_video_views_10s_unique - t2.post_video_views_10s_unique as 
Post_Video_Views_10s_Unique  
, t1.post_video_views_organic - t2.post_video_views_organic as 
Post_Video_Views_Organic  
, t1.post_video_views_paid - t2.post_video_views_paid as 
Post_Video_Views_Paid  
, t1.post_video_views_clicked_to_play - t2.post_video_views_clicked_to_play 
as Post_Video_Views_Clicked_to_Play  

FROM  
unpaid_media.facebook_insight t1  
JOIN unpaid_media.facebook_insight t2  
ON t1.id = t2.id   
and t1.timestamp  = t2.timestamp + INTERVAL 1 DAY
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1 回答 1

2

我可以从您的相关问题中猜到，您的专栏的类型timestamp不是date, datetime or timestamp。大概是varchar或text。

因此，当您尝试添加INTERVAL 1 DAY不是时间类型的值时，您会收到错误消息。

您必须将timestamp列转换为任何date, datetime or timestamp数据类型。

作为快速修复，您可以STR_TO_DATE()在查询中使用函数：

CREATE VIEW `facebook_insights` AS
...
and STR_TO_DATE(t1.timestamp,'%m/%d/%Y') = STR_TO_DATE(t2.timestamp,'%m/%d/%Y') + INTERVAL 1 DAY

但最好更改您的表以获得正确的数据类型。

于 2017-07-06T20:41:23.967 回答