From: | "Doug Bloebaum" <DBloebau(at)luxotticaRetail(dot)com> |
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To: | <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: Copy row from table to table |
Date: | 2004-12-14 21:07:29 |
Message-ID: | s1bf0fd9.054@smtp.luxotticaretail.com |
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Thread: | |
Lists: | pgsql-general |
>>> Michael Fuhr <mike(at)fuhr(dot)org> 12/14/04 1:45 PM >>>
>>On Tue, Dec 14, 2004 at 11:48:21AM -0600, Kall, Bruce A. wrote:
>> What is the easiest way to copy a particular row from one table to
>> another (assuming all the columns are exactly the same). I want to
>> maintain a table ('backup_table') that has rows I have (or will be)
>> deleting from my 'original_table'. (Both tables have the same 68
columns).
>>
>> I've tried
>>
>> INSERT INTO backup_table SELECT * FROM original_table WHERE
id='2305'
>That should work if the table definitions are identical or
compatible,
>including column positions being the same. Didn't it work? If not,
>what happened?
One cute way to guarantee that the table definitions are identical is:
CREATE TABLE backup_table AS SELECT * FROM original_table WHERE 1=0;
That ensures that subsequently doing the following is safe:
INSERT INTO backup_table SELECT * FROM original_table WHERE id='2305';
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