如何在mysql中找出当前时间和时间戳的秒、小时、日格式的时间差

Question

我的表中有一个时间戳值，它表示生成记录的时间。

我想知道使用 MySQL 生成记录之前的秒数、小时数、天数。换句话说，我们如何从 MySQL 中的当前时间和时间戳值中找出秒、小时、日格式的时间差异？

Answer 1

试试这个

 SELECT TIMESTAMPDIFF (SECOND, CURDATE(), your_timestamp_field) from your_table;

更多信息请参考date and time functions

Answer 2

> SELECT A.CALLSIGN,TO_CHAR(A.TIMEOFMSGRCVD ,'YYYYMMDDHH24MISS')
> time_tmo,TO_CHAR(b.TIMEOFMSGRCVD ,'YYYYMMDDHH24MISS') time_arrival,
> floor(((b.TIMEOFMSGRCVD-a.TIMEOFMSGRCVD)*24*60*60)/3600)
>            HOURS,
>            floor((((b.TIMEOFMSGRCVD-a.TIMEOFMSGRCVD)*24*60*60) -
>            floor(((b.TIMEOFMSGRCVD-a.TIMEOFMSGRCVD)*24*60*60)/3600)*3600)/60)
>            MINUTES,
>            round((((b.TIMEOFMSGRCVD-a.TIMEOFMSGRCVD)*24*60*60) -
>            floor(((b.TIMEOFMSGRCVD-a.TIMEOFMSGRCVD)*24*60*60)/3600)*3600 -
>            (floor((((b.TIMEOFMSGRCVD-a.TIMEOFMSGRCVD)*24*60*60) -
>            floor(((b.TIMEOFMSGRCVD-a.TIMEOFMSGRCVD)*24*60*60)/3600)*3600)/60)*60)
> ))
>           SECONDS    FROM (SELECT * FROM ATC.ATCMSG WHERE FLIGHTDATE=TO_CHAR(SYSDATE-1,'MMDDYY') AND EVENTTYPE='DES') a, (SELECT
> * FROM ATC.ATCMSG WHERE FLIGHTDATE=TO_CHAR(SYSDATE-1,'MMDDYY') AND EVENTTYPE='ARR') b WHERE A.CALLSIGN=B.CALLSIGN ORDER BY 4,5,6;