Question

我有这段代码可以从我当前月份的数据库数据中选择：

SELECT * FROM daily_reports
WHERE username = '$username' and MONTH(date) = MONTH(Now())
order by date DESC

现在我想显示上个月的数据。

列日期是类型日期

Answer 1

试试这个

SELECT * FROM daily_reports 
WHERE username = '$username' 
and MONTH(date) = MONTH(DATE_ADD(Now(), INTERVAL -1 MONTH)) order by date DESC

Answer 2

这应该有效： -

SELECT *
 FROM daily_reports 
WHERE username = '$username' 
and MONTH(date) = MONTH(DATE_ADD(Now(), INTERVAL -1 MONTH))
 order by date DESC

Answer 3

SELECT 
  * 
FROM
  daily_reports 
WHERE username = '$username' 
  AND dateColumn BETWEEN SUBDATE(CURDATE(), INTERVAL 1 MONTH) AND NOW();
ORDER BY DATE DESC

Answer 4

您可以在日期上执行许多操作，如精细手册中所示。

在你的情况下，也许DATE_SUB function最清楚：

SELECT * FROM daily_reports
WHERE username = '$username' AND MONTH(date) = MONTH(DATE_SUB(Now(), INTERVAL 1 MONTH)
ORDER BY date DESC

Answer 5

date BETWEEN date_format
(NOW() - INTERVAL 1 MONTH, '%Y-%m-01') 
AND last_day(NOW() - INTERVAL 1 MONTH)

从上个月的sql中选择数据

5 个答案: