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Editorial Team
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Asked: 2026-06-04T02:42:37+00:00

I’m trying: SELECT * FROM dbo.March2010 A WHERE A.Date >= 2010-04-01; A.Date looks like:

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I’m trying: 

SELECT * 
FROM dbo.March2010 A
WHERE A.Date >= 2010-04-01;

A.Date looks like: 2010-03-04 00:00:00.000

However, this is not working.

Can anyone provide a reference for why?

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1 Answer

  1. Editorial Team
    select *  
from dbo.March2010 A 
where A.Date >= Convert(datetime, '2010-04-01' )

    In your query, 2010-4-01 is treated as a mathematical expression, so in essence it read 

    select *  
from dbo.March2010 A 
where A.Date >= 2005;

    (2010 minus 4 minus 1 is 2005
    Converting it to a proper datetime, and using single quotes will fix this issue.)

    Technically, the parser might allow you to get away with

    select *  
from dbo.March2010 A 
where A.Date >= '2010-04-01'

    it will do the conversion for you, but in my opinion it is less readable than explicitly converting to a DateTime for the maintenance programmer that will come after you.

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