Question

我有一个包含大量记录的mysql表tbl_track

User_id  |  User_country  |  Datecreated (timestamp)
1        |3               |  2012-09-09 09:37:03
2        |7               |  2012-10-09 16:22:36

现在我希望得到一个像这样的结果（从开始月份到当月）

September | September & October
1 record  | 2 records

我试试这个，但结果是相反的，从当月到月初，即（十月，十月+九月，十月+九月+八月）。我也为每个

写了单独的查询

我当前月的查询是

SELECT * FROM tbl_track 
  WHERE YEAR(`date_created`) = YEAR(CURRENT_DATE) 
  AND MONTH(`date_created`) = MONTH(CURRENT_DATE)

我对当前＆amp;的查询上个月是

SELECT * as count FROM tbl_track 
 WHERE YEAR(`date_created`) = YEAR(CURRENT_DATE - INTERVAL 1 MONTH)
 AND MONTH(`date_created`) = MONTH(CURRENT_DATE - INTERVAL 1 MONTH)

Answer 1

据我所知，在查询中没有简单的方法可以做到这一点。但是，您可以使用以下内容：

SELECT COUNT(1), MONTH(date_created) AS mm, YEAR(date_created) AS yy
FROM tbl_track
GROUP BY mm, yy

这会为您提供每月记录数量的列表。基于你的phpmyadmin标签，我假设你要在PHP脚本中使用结果集，那么也许你可以在该脚本中对前几个月的数量进行累积计算？

Answer 2

您对当前和上个月的查询只提取上个月的记录

SELECT * as count FROM tbl_track 
WHERE YEAR(`date_created`) = YEAR(CURRENT_DATE - INTERVAL 1 MONTH)
 AND MONTH(`date_created`) = MONTH(CURRENT_DATE - INTERVAL 1 MONTH)

我认为你应该把它改成

SELECT count(*) as countofrec FROM tbl_track 
 WHERE YEAR(`date_created`) = YEAR(CURRENT_DATE - INTERVAL 1 MONTH)
 AND ( MONTH(`date_created`) = MONTH(CURRENT_DATE - INTERVAL 1 MONTH)
        OR
       MONTH(`date_created`) = MONTH(CURRENT_DATE) )

从开始到当月获取mysql数据

2 个答案: