Comments on: SQL SERVER – Retrieve – Select Only Date Part From DateTime – Best Practice – Part 2

By: madhivanan

madhivanan — Mon, 02 Aug 2010 10:53:40 +0000

You should always use unambiguous formats like YYYYMMDD format. The code you posted depends on the server’s date settings
http://beyondrelational.com/blogs/madhivanan/archive/2010/06/21/understanding-datetime-column-part-ii.aspx

By: Madhivanan

Madhivanan — Mon, 02 Aug 2010 10:47:23 +0000

It should be in unambiguous format like YYYYMMDD. Refer this post for more informations
http://beyondrelational.com/blogs/madhivanan/archive/2010/06/21/understanding-datetime-column-part-ii.aspx

By: Madhivanan

Madhivanan — Mon, 02 Aug 2010 10:24:39 +0000

Make sure to read this post to know how to use date values effectively in the where clause
http://beyondrelational.com/blogs/madhivanan/archive/2010/06/21/understanding-datetime-column-part-iii.aspx

By: Madhivanan

Madhivanan — Mon, 02 Aug 2010 10:22:16 +0000

I think that floor method would take more time becuase of two functions floor and float

By: Madhivanan

Madhivanan — Mon, 02 Aug 2010 10:21:12 +0000

SELECT case when 1=1 then ‘yes’ else ‘No’ end

By: Ashish

Ashish — Mon, 02 Aug 2010 09:24:57 +0000

or you can use between operator as well:-

where date between ’29-07-2010 00:00′ and ’29-07-2010 23:59:59′

By: Ashish

Ashish — Mon, 02 Aug 2010 09:06:45 +0000

thanks for reply.
in that case just use in your where condition as
where date >= ’29-07-2010′ and date < '30-07-2010'

By: vikram

vikram — Sat, 31 Jul 2010 10:46:16 +0000

thanks for reply Ashish…

your suggestion works for me but the problem is that after using date >= ’29-07-2010′ will also display the data who is greater than ’29-07-2010′ date but i need only which is equals to date=’29-07-2010′. well i am trying to display the daily transaction/history of the report. so i m still trying and hoping for solution. hope u understand my problem. :)

thanks regards
vik

By: Ashish

Ashish — Thu, 29 Jul 2010 11:52:06 +0000

are you sure you using the correct date format in where condition.
First run the select and see the format of date and then you can use date >= ’29-07-2010′.

I am sure its the date format and your date should be in the format of dd-mm-yyyy instead of dd/mm/yyyy

By: vikram

vikram — Thu, 29 Jul 2010 09:08:37 +0000

i m storing the date and time in date_time field with same id like..

1. aman 7/29/2010 12:59:02 PM
1. aman 7/29/2010 1:05:31 PM
1. aman 7/29/2010 1:07:43 PM

how can i count the records using where condition
i m trying the following query but no any result:-

select Count(*) from tbname where date_time=’7/29/2010′

ouput is
0

where m doing mistake. please assist me.
thanks
vik

By: SQL SERVER – DATE and TIME in SQL Server 2008 Journey to SQL Authority with Pinal Dave

Thu, 27 May 2010 01:31:42 +0000

[...] I was thinking about DATE and TIME datatypes in SQL Server 2008. I earlier wrote about the about best practices of the same. Recently I had written one of the script written for SQL Server 2008 had to run on SQL [...]

By: chandrakant Singh

chandrakant Singh — Tue, 09 Mar 2010 06:10:45 +0000

I Want to Become a good sql developer can you suggest me how to start Or what are the steps

By: R A Valencourt

R A Valencourt — Tue, 09 Jun 2009 19:35:41 +0000

Hello,

I’m wondering whether use of FLOOR would be equivalent to your Method 1, both in how it’s executed by SQL Server, and thus in performance?

Method 1:
SELECT DATEADD(D, 0, DATEDIFF(D, 0, GETDATE()))

FLOOR Method:
CAST( FLOOR( CAST( GETDATE() AS FLOAT ) ) AS DATETIME )

René

By: Satya

Satya — Thu, 23 Oct 2008 15:48:59 +0000

Can you explain about switch and case statements
i need help on them