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Re: Finding nearest numeric value

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Richard Huxton wrote:
> Poul Møller Hansen wrote:
> 
>> Does anyone know how to find the row with the nearest numeric value,
>> not necessarily an exact match ?
> 
> 
> While the other answers all do their job, and in one go too, I'd be
> surprised if you found anything faster than:
> 
> SELECT myval FROM mytable WHERE myval > 1234 ORDER BY myval LIMIT 1
> UNION ALL
> SELECT myval FROM mytable WHERE myval < 1234 ORDER BY myval DESC LIMIT 1
> 
> That gives you (up to) two values to look at, but should use any index
> you have on myval.
> 
> You can always sort the results by abs(myval) then if you don't want to
> handle two values in the application layer.
> 

Ahh, should that be >= and <= ? ;)

-- 
Peter Fein                 pfein@xxxxxxxxx                 773-575-0694

Basically, if you're not a utopianist, you're a schmuck. -J. Feldman

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