如何获得First＆amp; SQl Server表中的表行的最后一次出现

Question

Date         Speed
____________________
01/01/2015    20
02/01/2015    30
03/01/2015    40
04/01/2015    0
05/01/2015    0
06/01/2015    0
07/01/2015    10
08/01/2015    20

需要这样的结果（其中speed = 0）

First-OccurrenceDate  Last-OccurrenceDate
04/01/2015            06/01/2015 

Answer 1

试试这个：

SELECT MIN(Date) AS First-OccurrenceDate, MAX(Date) AS Last-OccurrenceDate
FROM   MYTABLE
WHERE  SPEED = 0

Answer 2

试试这个：

select min([Date]) as [First-OccurrenceDate], max([Date]) as [Last-OccurrenceDate]
from yourtablename
where speed = 0