MySQL - 如何自动执行视图查询，从最近日期到前一天减去指标并为最新数据添加日期戳

我有一个每日 API 调用，它为我提供唯一 ID 的 LIFETIME 数据，并在每天午夜为数据批次添加日期标记。该数据被附加到 MySQL 中的数据库中，但我需要以一种可以获取每个指标的唯一 ID 的每日数据的方式对其进行转换。

我在 MySQL 中的表：

期望的输出：

对于 id 3，我采用了前一天（2017 年 7 月 3 日）和最近日期（2017 年 7 月 4 日）的差异作为其各自的指标（展示次数、点击次数），并将该订单项的时间戳标记为 2017 年 7 月 4 日。我需要通过多个 id 和指标的 id 处理这种类型的转换。谢谢你！

根据雅各布的反馈更新我的查询：

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  

这里的关键是将表重新连接到自身。在下面的查询中，我将重新连接您的表，但对其进行设置，以便时间戳成为连接的限定符。这将加入前一天的记录并允许您简单地减去它们。

select
  t1.id
  , t1.timestamp
  , t1.impressions - t2.impressions as impressions
  , t1.clicks - t2.clicks as clicks
from
  table t1
  join table t2
    on t1.id         = t2.id
    and t1.timestamp = t2.timestamp + INTERVAL 1 DAY