Problem with comaparing exact date in WHERE part of query....

Question

Problem with comaparing exact date in WHERE part of query....

m12k_102

Grasshopper

Points: 23
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December 17, 2009 at 6:24 pm

#213812

Hi...
I got a problem with comparing date on WHERE part of my query even the date is in exact format...
Table Name : cash_up
Field: date_out
date_out value: '2009-12-17 10:45:52.5900000'
Note: CAST('2009-12-17 10:45:52.5900000' as datetime) = '12/17/2009 10:45:52 AM'
My Query:
SELECT
CAST(date_out as datetime) as date_out
FROM cash_up
WHERE
CAST(date_out as datetime) = '12/17/2009 10:45:52 AM'
I got no result.....
somebody know how can i fix this.... please ...
many thanks for any reply.....

Viewing 7 posts - 1 through 6 (of 6 total)

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Bru Medishetty SSC-Insane Points: 23606 More actions · Answer 1

Please read the Best practice article below and post some test data, since that provides us to see what error you are getting. It enables us to test a readily available code instead of we building it from scratch.

http://www.sqlservercentral.com/articles/Best+Practices/61537/[/url]

It makes the responses come quicker.

Bru Medishetty

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Grant Fritchey SSC Guru Points: 398679 More actions · Answer 2

What data type is date_out? Can you post some sample data from it?

BTW, running that function on your column in the WHERE clause will prevent indexes from being used.

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Ray K SSC-Dedicated Points: 31148 More actions · Answer 3

I just tried running your query on one of my own tables that has dates, and didn't have a problem.

BTW, Grant is correct . . . you should avoid including functions (such as CAST) in your WHERE clause.

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Jack Corbett SSC Guru Points: 184393 More actions · Answer 4

I can't even get the value, '2009-12-17 10:45:52.5900000', to CAST to datetime, I get this error:

Msg 241, Level 16, State 1, Line 12
Conversion failed when converting date and/or time from character string.

Jack Corbett
Consultant - Straight Path Solutions
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Jeff Moden SSC Guru Points: 1003851 More actions · Answer 5

Jack Corbett (12/18/2009)
I can't even get the value, '2009-12-17 10:45:52.5900000', to CAST to datetime, I get this error:
Msg 241, Level 16, State 1, Line 12
Conversion failed when converting date and/or time from character string.

Should probably work with new DATETIME2 datatype, Jack.

--Jeff Moden

RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

Change is inevitable... Change for the better is not.

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Jack Corbett SSC Guru Points: 184393 More actions · Answer 6

Jeff,

The OP specifically casts to datetime in the code provided so that's what I ran.

Jack Corbett
Consultant - Straight Path Solutions
Check out these links on how to get faster and more accurate answers:
Forum Etiquette: How to post data/code on a forum to get the best help
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