從上個月的SQL中選擇數據

Question

我可以從以下月份的數據庫數據中選擇以下代碼：

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

現在我想顯示上個月的數據。

列日期是類型日期

Answer 1

嘗試這個

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

Answer 2

這應該工作：

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

您可以對日期進行許多操作，如精美手冊中所示。

就您而言， DATE_SUB函數可能是最清晰的：

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)