WebMay 13, 2011 · 8 Answers. Sorted by: 17. This works for any input and any setting of DATEFIRST: dateadd (d, - ( (datepart (weekday, getdate ()) + 1 + @@DATEFIRST) % 7), getdate ()) It works by adjusting the weekday value so that 0 = Friday, simulating Friday as the beginning of the week. Then subtract the weekday value if non-zero to get the most … WebJan 1, 2024 · We can start by setting the first day of the week to Thursday, using the SET DATEFIRST statement. This means, further calculations will take a Thu to Wed week instead of the usual. You could then restrict your data to start from the first Thursday of the year and finally, just subtract 1 from WEEK to get the desired output.
【SQL Server】数据库开发指南(三)面向数据分析的 T-SQL 编程 …
WebHere is the SQL: select "start_of_week" = dateadd (week, datediff (week, 0, getdate ()), 0); This returns 2011-08-22 00:00:00.000, which is a Monday, not a Sunday. Selecting @@datefirst returns 7, which is the code for Sunday, so the server is setup correctly in as far as I know. I can bypass this easily enough by changing the above code to: chip tan modul
How to Get the First Day of the Week in SQL Server
WebJul 27, 2013 · SQL Server中Rowcount与@@Rowcount的用法,rowcount的用法:rowcount的作用就是用来限定后面的sql在返回指定的行数之后便停止处理,比如下面的示例,setrowcount10select*from表A这样的查询只会返回表A中的前10条数据。它和"selecttop10*from表A"的作用一样。注意一点,setrowcount的设置会在整个会话中有效。 WebApr 14, 2024 · 一、获得给定月份的周日数 根据给定的某个日期,计算这个月份的周日的天数。 根据系统变量@@DATEFIRST的值,判断周日的序号为【DatePart(WEEKDAY,RQ)= (07-@@DateFirst) % 7 + 1】。下面列出了周 一、获得给定月份的周日数 根据给定的某个日期,计算这个月份的周日的天数。 WebDatepart Week Sql (With 53 weeks for year) I'm calculating the week for a specific date in SQL for example '2016-01-20' ( yyyy-mm-dd) but SQL returns week: 4, and that is wrong because this year the first week started on '2016-01-04' the result must be week: 3. I think the issue is generatad because 2015 was a year with 53 weeks, any solution ... chiptan optisch flickercode