Question

我正在使用3列表，试图获取过去30天每天的唯一条目计数。

|RecordNumber|extension|date|

我以为我在这方面取得了进步

 SELECT DATE_FORMAT(date, '%m/%d/%Y') AS Dates, extension 
   FROM API_phones 
  WHERE date LIKE '%' AND date BETWEEN NOW() - INTERVAL 30 DAY AND NOW()
  ORDER BY Dates ASC

但是我不确定如何完成它。

过去30天内每天有多少个条目。

Answer 1

如果您需要每天输入的条目数，则应使用count（*）并按

分组

2018-07-09 08:00:00

Answer 2

如果您只需要每天计数，请使用以下内容：

SELECT DATE_FORMAT(date, '%m/%d/%Y') AS Dates, count(*) as count 
   FROM API_phones 
  WHERE date BETWEEN NOW() - INTERVAL 30 DAY AND NOW()
Group by
  Dates
  ORDER BY Dates ASC

如果每个扩展程序每天需要它，可以尝试以下操作：

SELECT DATE_FORMAT(date, '%m/%d/%Y') AS Dates, extension, count(*) as count 
   FROM API_phones 
  WHERE date BETWEEN NOW() - INTERVAL 30 DAY AND NOW()
Group by
  Dates, extension
  ORDER BY Dates ASC

获取最近30天中每行的mysql行计数

3 个答案: