php - mySQL查询昨天的最大时间戳

Question

我正在寻找从昨天开始的最大时间戳。将数据存储为日期时间。

数据库布局是表名: yield

列:id、收入、时间戳

当前执行命令:

SELECT earnings, timestamp FROM earnings WHERE timestamp = (SELECT MAX(timestamp) FROM earnings)

现在我想获得昨天的最高时间戳....请让我知道通过 mySQL 或 PHP 和 mySQL 执行此操作的最佳方法。

Answer 1

SELECT earnings, timestamp 
FROM earnings 
WHERE timestamp = (SELECT MAX(timestamp) 
                   FROM earnings
                   WHERE DATE(timestamp) = DATE_ADD(CURDATE(),INTERVAL -1 DAY))

或

SELECT  a.*
FROM    earnings a
        INNER JOIN
        (
            SELECT MAX(timestamp) max_Date
            FROM earnings
            WHERE DATE(timestamp) = DATE_ADD(CURDATE(),INTERVAL -1 DAY)
        ) b ON a.timestamp = b.max_Date