Re: Am I crazy or is this SQL not possible

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От Yasir Malik
Тема Re: Am I crazy or is this SQL not possible
Дата
Msg-id Pine.NEB.4.64.0606011540570.1881@pink-elephant.cs.stevens-tech.edu
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Ответ на Re: Am I crazy or is this SQL not possible  ("Aaron Bono" <postgresql@aranya.com>)
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Re: Am I crazy or is this SQL not possible
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> It is a hack, but when someone wants you to do something in a way
> different from the norm, aren't they asking for a hack?
>
> SQL Server does something like
> select top (1) from ....
>
> I am thinking this is NOT a SQL-99 standard.
>
This was an interview with Amazon, and I don't think Amazon wanted a hack. 
I hope Amazon doesn't use hacks.  There has to be another way.  It would 
be cruel if they expected me know some database specific functionality.
Here's what I gave them:
select value  from table t where t.value >  (select t2.value     from table t2);

which would be fine if the sub-select returned simply a list, but that 
isn't even valid SQL (I didn't get the job, BTW).

Yasir


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