PHP/MYSQL 本月和上个月的比较日期

Question

我正在开发一个报告模块。我一直在比较某些代理本周和上周的报告。

本周报表查询如下

SELECT COUNT(created_at) AS cust_count_new, agency_id, created_at FROM customers WHERE 
(customers.created_at >= DATE(NOW()) - INTERVAL 6 DAY AND customers.created_at
< DATE(NOW()) + INTERVAL 1 DAY

上周报表查询如下

SELECT COUNT(created_at) AS cust_count_old, agency_id, created_at FROM customers WHERE 
(customers.created_at >= DATE(NOW()) - INTERVAL 13 DAY AND customers.created_at 
< DATE(NOW()) - INTERVAL 6 DAY

我正在做的是比较本周和上周的报告。现在我如何将查询更改为本月和上个月(30 天)。我有点困惑，所以非常感谢任何帮助。

Answer 1

您可以在 INTERVAL 中使用 MONTH 作为单位。 。另外，您可以使用CURDATE()而不是 DATE(NOW()) 来获取当前日期。

这个月报告查询将是:

SELECT COUNT(created_at) AS cust_count_new, 
       agency_id, 
       created_at 
FROM customers 
WHERE customers.created_at >= CURDATE() - INTERVAL 1 MONTH AND 
customers.created_at < CURDATE() + INTERVAL 1 DAY

上月报告查询如下

SELECT COUNT(created_at) AS cust_count_new, 
       agency_id, 
       created_at 
FROM customers 
WHERE customers.created_at >= CURDATE() - INTERVAL 2 MONTH AND 
customers.created_at < (CURDATE() - INTERVAL 1 MONTH) + INTERVAL 1 DAY