我可以计算出SQL Server中两个日期之间的周末天数吗？

I'm calculating income of hiring equipments for a report. In that, hiring cost in weekend days will be plus 10% more if compare with normal days. So how can I calculate there's how many weekend days between two dates. And in report query, I can't use DECLARE also. Can someone help me to do this. Thank you so much

我正在计算报告的招聘设备收入。在这方面，如果与正常天数相比，周末天的招聘成本将增加10％。那么如何计算两个日期之间的周末天数。而在报表查询中，我也不能使用DECLARE。有人可以帮助我做到这一点。非常感谢

1 个解决方案

#1

This should work:

这应该工作：

DECLARE @StartDate DATETIME
DECLARE @EndDate DATETIME
SET @StartDate = '2012/11/01'
SET @EndDate = '2012/11/05'


SELECT
  (DATEDIFF(wk, @StartDate, @EndDate) * 2)
   +(CASE WHEN DATENAME(dw, @StartDate) = 'Sunday'   THEN 1 ELSE 0 END)
   +(CASE WHEN DATENAME(dw, @EndDate)   = 'Saturday' THEN 1 ELSE 0 END)

http://sqlfiddle.com/#!3/d41d8/5707/0

http://sqlfiddle.com/#!3/d41d8/5707/0