tsql - 转换 HH :MM:SS string to number of minutes

Question

我有以下查询。

select cast(dateadd(minute, datediff(minute, TimeIn, TimeOut), 0) as time(0) )

我以小时-分钟-秒的格式从两列中得到结果。
我只想要 min 的格式。所以02:47:00会读167 .

Answer 1

SQL Server 查询:

SELECT cast(substring('02:47:00',1,2) AS int)*60+
       cast(substring('02:47:00',4,2) AS int)+ 
       cast(substring('02:47:00',7,2) AS int)/60.0 AS minutes

MYSQL 查询:

SELECT TIME_TO_SEC('02:47:00') / 60

结果:

| MINUTES |
-----------
|     167 |