sql server状态更改时间

Question

THENUMBER       NUMBER      SYSMODTIME              TYPE
ACTIM2816332    IM0540202   2014-11-18 09:17:53.000 Closed
ACTIM2806050    IM0540202   2014-11-13 15:11:29.000 Update
ACTIM2806051    IM0540202   2014-11-13 15:11:29.000 External Vendor Assignment
ACTIM2806049    IM0540202   2014-11-13 15:11:29.000 Status Change
ACTIM2806046    IM0540202   2014-11-13 15:10:34.000 Assignment
ACTIM2804167    IM0540202   2014-11-13 09:31:12.000 Status Change
ACTIM2804166    IM0540202   2014-11-13 09:31:12.000 Assignment
ACTIM2802130    IM0540202   2014-11-12 17:09:57.000 Open

你能帮我创建一个选择来计算从打开到关闭的类型变化之间的时差吗？

我需要成为不同NUMBER的通用。

Answer 1

<强>分钟

SELECT NUMBER, MAX([SYSMODTIME]) AS Closed, MIN([SYSMODTIME]) AS Open,
(DATEDIFF (mi, MAX([LoginDateTime]), MIN([SYSMODTIME]))) AS [datediff]
FROM table
GROUP BY NUMBER

<强>小时

SELECT NUMBER, MAX([SYSMODTIME]) AS Closed, MIN([SYSMODTIME]) AS Open,
(DATEDIFF (hh, MAX([LoginDateTime]), MIN([SYSMODTIME]))) AS [datediff]
FROM table
GROUP BY NUMBER