Re: deleting records is failing

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От Tim Vadnais
Тема Re: deleting records is failing
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Msg-id 004401c5fbac$0ce8feb0$6601a8c0@timothygwxu5p68ln
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Ответ на Re: deleting records is failing  (Michael Glaesemann <grzm@myrealbox.com>)
Ответы Re: deleting records is failing
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Thank you.

I've modified the code to read:

DELETE from tracker WHERE tracker.episode_id = 277 AND
tracker.date_of_service BETWEEN '09/12/2005'::date - interval '1 day' AND
'10/20/2005'::date + interval '1 day'

And got:

SELECT * from tracker where tracker.episode_id = 277;
53716 |  277 |     27 | 10/27/2005
53717 |  277 |     28 | 10/28/2005
53720 |  277 |     29 | 11/05/2005
53721 |  277 |     30 | 11/06/2005

Which suggest to me that it's a true between (exclusive).

I really appreciate your help.

<<Tim makes note of *really* useful BETWEEN conditional.>>

-----Original Message-----
From: pgsql-general-owner@postgresql.org
[mailto:pgsql-general-owner@postgresql.org] On Behalf Of Michael Glaesemann
Sent: Wednesday, December 07, 2005 7:21 PM
To: Tim Vadnais
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] deleting records is failing


On Dec 8, 2005, at 12:13 , Tim Vadnais wrote:

> I have a set of records spanning several dates, and I want to
> delete some
> records within a specific date range.  For example, I have a record
> for each
> day from Sept 1 through Nov 1, and I want to delete the records for
> Sept 21
> through 10/20 and leave all the rest.
>
> Here is my query that's deleting all the records for the episode
> DELETE FROM tracker WHERE tracker.episode_id = 238 AND
> ( rug_tracker.date_of_service < '09/12/2005'
> OR rug_tracker.date_of_service > '10/20/2005' );

DELETE FROM tracker
WHERE episode_id = 238
AND date_of_service BETWEEN '2005-09-21'::date and '2005-10-20'::date;

Note that between is inclusive, so if you don't want Sept 21 (or is
it Sept 12? you've used one in your explanation and another in your
SQL) and Oct 20, you can use BETWEEN '2005-09-22' AND '2005-10-19'
instead.

Michael Glaesemann
grzm myrealbox com




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