sql服务器状态更改时间

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 

请帮我创建一个选择来计算从打开到关闭的类型更改之间的时间差？

我需要成为一个通用的不同的NUMBER。

Answer 1

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 

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