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Editorial Team
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Asked: 2026-06-11T22:49:36+00:00

I am using WebMatrix with SQL Server Compact, and just have a simple question.

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I am using WebMatrix with SQL Server Compact, and just have a simple question. I have a line of code:

if(cndDateLastModified=="gteq"){stringCompiler+="'CAST(DateLastModified AS datetime)' >= 'CAST(" + DateLastModified + " AS datetime)' ";}////

By plotting the output on the screen the query specifically looks like:

SELECT * FROM POITable WHERE 'CAST(DateLastModified AS datetime)' >= 'CAST(09/25/2012 AS datetime)'

For some reason, it returns all rows before, on, and after the date specified.
I’m still a little green when it comes to querying, but by all researched accounts, this should work. Clearly it is doing something I don’t quite expect, which is understandable, considering.

Any ideas on how I can get this to work the way I want it? Is it still trying to compare strings or some other format?

Note: I did try this with CONVERT(datetime, DateLastModified) and CONVERT(datetime, DateLastModified, 1) for both conversions.

Another Note: It is stored in the database as a string.

Another Note: If I switch the condition (from >= to <=) it does the opposite and returns no rows, which I would kind of expect considering the first unexpected result set, but still don’t know why.

Any ideas?

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1 Answer

  1. Editorial Team

    Because with the single quotes you are comparing two strings. ‘CAST(….)’ vs. ‘CAST(…)’. You may as well have written WHERE ‘Ginger’ >= ‘Fred’ you would get the same results. 😀

    What you should need is:
    FROM POITable WHERE CAST(DateLastModified AS datetime) >= CAST(’09/25/2012′ AS datetime)

    Use the single quotes around the literal date. ’09/25/2012′

    However if you’re using SQL server, you can just use WHERE CAST(DateLastModified AS datetime) >= ‘2012-09-25’

    Additionally, if the DateLastModified column of the table is already a date time, remove the cast. Cast is for converting strings to data types. My hunch is all you need is:

    WHERE DateLastModified >= '2012-09-25' /* ISO date strings are understood and accepted by SQL Server. */
or
WHERE DateLastModified >= GETDATE() /*Everything in the future, time inclusive.*/
or
WHERE DateLastModified >= DATEADD(dd, DATEDIFF(dd, 0, getdate()), 0) /* Everything starting today. */
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