Absolutely simple SQL Server query doesn't return anything

Question

What I have here is very strange to me...

Select BARCODE, DATA 
from HISTORIA 
WHERE BARCODE='25405187' AND DATA = '2013-03-08 00:00:00.000'

Select BARCODE, DATA 
from HISTORIA 
WHERE BARCODE='25405187'

Simple right?

Now please look at returned data:

Ekhmmm... why... Why... WHYYYY? :) As you see proper dates are there, but comparison kills results.

I have SQL Server 2005 Express and the Management Studio Express

Answer 1

'2013-03-08 00:00:00.000' is not an unambiguous format when casting to datetime. It can either mean 3rd of August or 8th of March.

It depends upon your DATEFORMAT settings (which in turn depends upon the language of your login).

SET LANGUAGE english

SELECT CAST('2013-03-08 00:00:00.000' AS DATETIME) AS english

SET LANGUAGE british

SELECT CAST('2013-03-08 00:00:00.000' AS DATETIME) AS british

Returns

Changed language setting to us_english.
english
-----------------------
2013-03-08 00:00:00.000

---

Changed language setting to British.
british
-----------------------
2013-08-03 00:00:00.000

Use

WHERE BARCODE='25405187' AND DATA = '20130308 00:00:00.000' 

Or more simply

WHERE BARCODE='25405187' AND DATA = '20130308' 

Answer 2

Try this standard (ISO) date representation:

Select BARCODE, DATA 
from HISTORIA 
WHERE BARCODE='25405187' AND DATA = '2013-03-08T00:00:00.000'