sql - 使用 DATEDIFF() 的计算列

Question

我有一个显示整个月的表格 - 工单开始日期是这样的 (2015-07-28 06:40:52:337) 工单结束日期是这样的 (2015 -07-29 07:45:52:337).

使用 T-SQL DATEDIFF() 我想找出 DAYS, HOURS, MINUTES 的区别> 和 SECS，并将其放入名为 TimeDiff 的新计算列中。

我怎样才能做到这一点？

Answer 1

使用 DATEDIFF

SELECT  CAST(DATEDIFF(DAY, [Opened Start Date], [Close End Date]) AS VARCHAR(5)) + ' Day(s), ' +
        CAST(DATEDIFF(HOUR, [Opened Start Date], [Close End Date]) AS VARCHAR(5)) + ' Hour(s), ' +
        CAST(DATEDIFF(MINUTE, [Opened Start Date], [Close End Date]) AS VARCHAR(5)) + ' Minute(s), ' +
        CAST(DATEDIFF(SECOND, [Opened Start Date], [Close End Date]) AS VARCHAR(5)) + ' Second(s), ' AS TimeDiff
FROM yourTable