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  3. September 2014

Re: Converting a numeric date value to a DATE in SQL

On Tue, Sep 9, 2014 at 10:38 AM, Jeff Young <jyoung0950@xxxxxxxxx> wrote:
Using SQL, how do I convert a numeric value of a database field in ISO date
format (ccyymmdd) to a DATE data type for comparison?
I need to select all records with a date that is equal to a value input by
the user.

I think we all agree that the "right" way to do dates is with date
fields. However, if all you need is to check for equality, probably
the fastest thing to do is to convert your input to numeric ISO and do
a direct comparison with that.

And in your case, even if you had to check for earlier-than,
later-than, or between, you could still use the numeric ISO dates
as-is (this would not be the case for MDY, USA, or EUR numeric-field
dates).

That said, it is probably still worth having iDate. :)

John Y.

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