Re: How to create an archive for old records?

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От Paul Lambert
Тема Re: How to create an archive for old records?
Дата
Msg-id 45D3B8AA.3090501@autoledgers.com.au
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Ответ на Re: How to create an archive for old records?  (Ron Johnson <ron.l.johnson@cox.net>)
Ответы Re: How to create an archive for old records?  (Ron Johnson <ron.l.johnson@cox.net>)
Список pgsql-general
Ron Johnson wrote:
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> On 02/14/07 19:11, carter ck wrote:
>> Hi all,
>>
>> I am looking for ways to create an archive of records older than 3
>> months in one of my table, and store these extracted records into a
>> local database. Does Postgres have any command to do this?
>
> A single command that will copy data to a destination database, and
> then delete from the source database?
>
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>

I think the problem may be in determining when a record was added to the
table. If there is no 'date added' column as part of your table
specification that you populate when adding a row then is there any way
to determine when a record was added?

If there is a date added (which is a standard I put in all tables I use)
then it should be a fairly straight forward task of doing an INSERT INTO
followed by a DELETE FROM. As for a single command... I'm not aware of
any "INSERT INTO AND DELETE ORIGINAL" variant so it would have to be two
SQL commands, albeit it uncomplicated.

--
Paul Lambert
Database Administrator
AutoLedgers


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