Comments on: SQL SERVER – SQL SERVER – UDF – Get the Day of the Week Function – Part 2 http://blog.sqlauthority.com/2008/05/23/sql-server-sql-server-udf-get-the-day-of-the-week-function-part-2/ Notes of a SQL Server MVP and Database Administrator Sat, 21 Nov 2009 05:54:09 +0000 http://wordpress.com/ hourly 1 By: Kristjan Farrugia http://blog.sqlauthority.com/2008/05/23/sql-server-sql-server-udf-get-the-day-of-the-week-function-part-2/#comment-57083 Kristjan Farrugia Tue, 27 Oct 2009 17:03:59 +0000 http://sqlauthority.wordpress.com/?p=613#comment-57083 Thanks Pinal :) Thanks Pinal :)

]]> By: george http://blog.sqlauthority.com/2008/05/23/sql-server-sql-server-udf-get-the-day-of-the-week-function-part-2/#comment-53948 george Wed, 22 Jul 2009 08:58:34 +0000 http://sqlauthority.wordpress.com/?p=613#comment-53948 is this work with sql 2000 is this work with sql 2000

]]> By: Ray http://blog.sqlauthority.com/2008/05/23/sql-server-sql-server-udf-get-the-day-of-the-week-function-part-2/#comment-45721 Ray Mon, 19 Jan 2009 05:21:49 +0000 http://sqlauthority.wordpress.com/?p=613#comment-45721 Thanks a lot for this - right on the button and saved me a deal of work. Great stuff Ray Sydney Australia Thanks a lot for this – right on the button and saved me a deal of work.

Great stuff

Ray

Sydney
Australia

]]> By: SQL SERVER - SQL SERVER - UDF - Get the Day of the Week Function - Part 3 Journey to SQL Authority with Pinal Dave http://blog.sqlauthority.com/2008/05/23/sql-server-sql-server-udf-get-the-day-of-the-week-function-part-2/#comment-39116 SQL SERVER - SQL SERVER - UDF - Get the Day of the Week Function - Part 3 Journey to SQL Authority with Pinal Dave Mon, 09 Jun 2008 16:47:56 +0000 http://sqlauthority.wordpress.com/?p=613#comment-39116 [...] 27, 2008 by pinaldave Datetime functions and stored procedures always interests me. Nanda Kumar has suggested modification to previous written article about SQL SERVER - SQL SERVER - UDF - Get [...] [...] 27, 2008 by pinaldave Datetime functions and stored procedures always interests me. Nanda Kumar has suggested modification to previous written article about SQL SERVER – SQL SERVER – UDF – Get [...]

]]> By: Nanda KUmar http://blog.sqlauthority.com/2008/05/23/sql-server-sql-server-udf-get-the-day-of-the-week-function-part-2/#comment-39088 Nanda KUmar Mon, 09 Jun 2008 05:44:33 +0000 http://sqlauthority.wordpress.com/?p=613#comment-39088 Hi Pinal, Actually the function u posted is returning 'NULL' for Saturdays and works for rest all days. And you didn't use the given argument inside the funciton instead you used getdate(). this also returns error. The following is working... Create FUNCTION dbo.udf_DayOfWeek(@dtDate DATETIME) RETURNS VARCHAR(10) AS BEGIN DECLARE @rtDayofWeek VARCHAR(10) DECLARE @weekDay INT --Here I have subtracted 7 For keeping Sunday as the First day like wise for Monday we need to subtract 2 and so on set @weekDay=((DATEPART(dw,@dtDate)+@@DATEFIRST-7)%7) SELECT @rtDayofWeek = CASE @weekDay WHEN 1 THEN 'Sunday' WHEN 2 THEN 'Monday' WHEN 3 THEN 'Tuesday' WHEN 4 THEN 'Wednesday' WHEN 5 THEN 'Thursday' WHEN 6 THEN 'Friday' WHEN 0 THEN 'Saturday' END RETURN (@rtDayofWeek) END GO select dbo.udf_dayofweek(getdate()) I'm happy to reply this post as Novice DBA Nandha Hi Pinal,

Actually the function u posted is returning ‘NULL’ for Saturdays and works for rest all days. And you didn’t use the given argument inside the funciton instead you used getdate(). this also returns error. The following is working…

Create FUNCTION dbo.udf_DayOfWeek(@dtDate DATETIME)
RETURNS VARCHAR(10)
AS
BEGIN
DECLARE @rtDayofWeek VARCHAR(10)
DECLARE @weekDay INT
–Here I have subtracted 7 For keeping Sunday as the First day like wise for Monday we need to subtract 2 and so on
set @weekDay=((DATEPART(dw,@dtDate)+@@DATEFIRST-7)%7)
SELECT @rtDayofWeek = CASE @weekDay
WHEN 1 THEN ‘Sunday’
WHEN 2 THEN ‘Monday’
WHEN 3 THEN ‘Tuesday’
WHEN 4 THEN ‘Wednesday’
WHEN 5 THEN ‘Thursday’
WHEN 6 THEN ‘Friday’
WHEN 0 THEN ‘Saturday’
END
RETURN (@rtDayofWeek)
END
GO

select dbo.udf_dayofweek(getdate())

I’m happy to reply this post as Novice DBA

Nandha

]]> By: Sudev Gandhi http://blog.sqlauthority.com/2008/05/23/sql-server-sql-server-udf-get-the-day-of-the-week-function-part-2/#comment-39011 Sudev Gandhi Thu, 05 Jun 2008 17:11:12 +0000 http://sqlauthority.wordpress.com/?p=613#comment-39011 Hi Pinal, I'm also surprised to see effort you've put to retrive Day of week for a given date. DATENAME function can perform this task pretty well. I'm sure you must be aware of this function but you might have face some issue with it. Could you please share those issues wit DATENAME function? Thanks & Regards, Sudev Gandhi [http://sudev.blogspot.com Hi Pinal,

I’m also surprised to see effort you’ve put to retrive Day of week for a given date. DATENAME function can perform this task pretty well.

I’m sure you must be aware of this function but you might have face some issue with it. Could you please share those issues wit DATENAME function?

Thanks & Regards,
Sudev Gandhi
[http://sudev.blogspot.com

]]> By: Simon Worth http://blog.sqlauthority.com/2008/05/23/sql-server-sql-server-udf-get-the-day-of-the-week-function-part-2/#comment-38977 Simon Worth Wed, 04 Jun 2008 12:35:01 +0000 http://sqlauthority.wordpress.com/?p=613#comment-38977 I'm still a little confused as to why you would want to go through the trouble of calling a UDF with 18 to 20 lines of code when the SQL Server development team has already done it for you. SELECT DATENAME(dw, GETDATE()) I do understand the fun that can be had with trying to solve complex problems with T-SQL, but this is not one of those complex problems. It's built in to the system for anyone to use when ever they want. I’m still a little confused as to why you would want to go through the trouble of calling a UDF with 18 to 20 lines of code when the SQL Server development team has already done it for you.

SELECT DATENAME(dw, GETDATE())

I do understand the fun that can be had with trying to solve complex problems with T-SQL, but this is not one of those complex problems. It’s built in to the system for anyone to use when ever they want.

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