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Asked: 2026-06-17T18:01:21+00:00

I’m using SQL Server 2008 R2. I need to get the Sunday weekno and

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I’m using SQL Server 2008 R2. I need to get the Sunday weekno and I already have the query but it shows the wrong data. What can I do ?

It shows 2 instead of 1. For example, 06-Jan-2013(WeekNo – 1)

My query is 

SELECT DATEPART (week, '01-13-2013 23:59:59.000' ) As WeekNo1 ,  
  DATEPART (week, '01-06-2013 23:59:59.000' ) As WeekNo2 ,  
  DATEPART (week, '12-30-2012 23:59:59.000' ) As WeekNo3 ,  
  DATEPART (week, '12-23-2012 23:59:59.000' ) As WeekNo4 ,  
  DATEPART (week, '12-16-2012 23:59:59.000' ) As WeekNo5 ,  
  DATEPART (week, '12-09-2012 23:59:59.000' ) As WeekNo6
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1 Answer

  1. Editorial Team

    Query:

    SQLFIDDLEExample

    SET DATEFIRST 1
SELECT DATEPART (week, '01-13-2013 23:59:59.000' ) As WeekNo1 ,  
       DATEPART (week, '01-06-2013 23:59:59.000' ) As WeekNo2 , 
       DATEPART (week, '12-30-2012 23:59:59.000' ) As WeekNo3 ,  
       DATEPART (week, '12-23-2012 23:59:59.000' ) As WeekNo4 ,  
       DATEPART (week, '12-16-2012 23:59:59.000' ) As WeekNo5 ,  
       DATEPART (week, '12-09-2012 23:59:59.000' ) As WeekNo6

    Result:

    | WEEKNO1 | WEEKNO2 | WEEKNO3 | WEEKNO4 | WEEKNO5 | WEEKNO6 |
-------------------------------------------------------------
|       2 |       1 |      53 |      52 |      51 |      50 |
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