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Asked: 2026-06-01T12:27:48+00:00

set dateformat dmy select isdate(’31/1/2012′) I thought by going into Change the format of

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set dateformat dmy
select isdate('31/1/2012')

I thought by going into Change the format of numbers, dates, and times in Windows Control Panel that I wouldn’t have to SET DATEFORMAT DMY in sql?

So I made the change, omitted the set statment, and the isdate is still failing, what am I missing?

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  1. Editorial Team

    In SQL Server 2012 you can use TRY_PARSE and specify a culture (e.g. en-gb). You can read about TRY_PARSE here:

    http://msdn.microsoft.com/en-us/library/hh213126(v=sql.110).aspx

    Much safer, of course, to use an unambiguous date format in the first place, and avoid all the culture nonsense. You can have the application convert user entry before it ever sees the database, or just avoid string input altogether – with a calendar control or drop downs you can dictate a safe format like YYYYMMDD and not have to worry about regional, language or dateformat settings – never mind trusting that all users are entering d/m/y vs. m/d/y…

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