From: | "Uwe C(dot) Schroeder" <uwe(at)oss4u(dot)com> |
---|---|
To: | "Keith" <siu_keith(at)hotmail(dot)com>, <pgsql-admin(at)postgresql(dot)org> |
Subject: | Re: add serial no |
Date: | 2004-08-24 18:43:08 |
Message-ID: | 200408241143.08959.uwe@oss4u.com |
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Lists: | pgsql-admin |
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On Sunday 22 August 2004 02:47 am, Keith wrote:
> Dear All,
>
> Someone can help me to solve the below problems
>
> 1. I create a table for a period of time, there is huge records already
> posted. I would like to alter table and add serial primary key on that
> table. It's impossible to add serial no by hand. Please adv how can I add
> the serial number automatically.
Create a table with the same structure as your original table, just add a
sid int4 serial
column to it. (sid can be any column name you want it to be) The serial column
has to be at the end!
Then do a
INSERT INTO <new table> SELECT FROM <old table>
The serial column will automatically be set to 1,2,3,4,5 etc.
After that check if all the data made it to the new table and then you can
drop the old table and rename the new table to the name of the old table.
As usual I'd make a backup of the original table before doing all this.
> 2. Is there any library to translate digit number to English, I mean
> translate '1234' to 'one thousand two hundred thirty four'.. Pls help.
Sorry, can't help with that one.
UC
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