Question

How to find out day of week in SQL

Asked by: sspeedy00

Hi everyone,

So I need to find out if a date entered is a Sunday. If it is, I gotta do something special with this data. I'm not sure if Datepart will help or how to use it effectively to extract if it's a Sunday or if it's 1st day of the week (well if the week starts at Sunday).

Any help? Thanks.

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Asked On
2009-09-17 at 12:54:56ID24741224
Tags

day funtion

,

sql

,

datepart

,

datetime

Topics

MS SQL Reporting

,

MS SQL Server

,

SQL Server 2005

Participating Experts
3
Points
500
Comments
6

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Answers

 

by: aneeshattingalPosted on 2009-09-17 at 13:01:40ID: 25360358

select datename (dw, getdate() )

 

by: rrjegan17Posted on 2009-09-17 at 13:18:34ID: 25360553

Hope this is what you require

SELECT CASE WHEN datepart(dw, getdate()) = 1 THEN 'First day of Week' ELSE 'Not a First day' END 

                                              
1:

Select allOpen in new window

 

by: ValentinoVPosted on 2009-09-17 at 23:32:38ID: 25363281

I'd like to mention that the result of rrjegan17's solution depends on the datefirst setting.  By default the first day of the week is Sunday (on US-English servers).

You can verify what the first day of the week is on your system by running SELECT @@DATEFIRST.
And you can use SET DATEFIRST x (where x is a number between 1 and 7) to alter the first day of the week for the current session.

 

by: rrjegan17Posted on 2009-09-18 at 02:25:34ID: 25364108

Good Point ValentivoV

 

by: ValentinoVPosted on 2009-09-18 at 02:37:17ID: 25364179

Thanks :-)

 

by: sspeedy00Posted on 2009-09-21 at 11:51:52ID: 31631566

Quick and exactly what I was looking for.  Thanks!

20120131-EE-VQP-002

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