Re: Finding missing values in sequence column

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От Jasen Betts
Тема Re: Finding missing values in sequence column
Дата
Msg-id ifik8d$mo8$1@reversiblemaps.ath.cx
обсуждение исходный текст
Ответ на Finding missing values in sequence column  (Lukasz Brodziak <lukasz.brodziak@gmail.com>)
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On 2010-12-30, Lukasz Brodziak <lukasz.brodziak@gmail.com> wrote:
> Hello,
>
> I have a problem with writing a select statement that would return
> records for which difference in values of this and following ID is
> bigger than 1. Example table
> ID      Data
> 1       Text
> 2       Text2
> 5       Text5
> 23     Text23
> 24     TXT
> 25     RRRR
>
> So I need to return rows with IDs 2,5,23.

SELECT id FROM Example EXCEPT SELECT id-1 FROM Example;

select * FROM Example WHERE id+1 NOT IN ( SELECT id FROM Example );





> --
> Łukasz Brodziak
> "What if everyting around You isn't quite as it seems,
> What if all the world You think You know is an inelaborate dream
> When You look at Your reflection is that all you want it to be
> What if You could look right through the cracks
> Would You find Yourself...... Find Yourself afraid to see"
>


--
⚂⚃ 100% natural

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