From: | "Daniel Verite" <daniel(at)manitou-mail(dot)org> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Cast char to number |
Date: | 2010-02-24 20:25:35 |
Message-ID: | ab530d33-abda-44c0-9548-6e1cef0a3c0a@mm |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
Raymond O'Donnell wrote:
> (i) Create a new column of type numeric or integer as appropriate.
> (ii) update your_table set new_column = CAST(trim(both ' 0' from
> old_column) as numeric)
> (iii) Drop the old column, as well as any constraints depending on it.
> (iv) Rename the new column to the same name as the old column
> (v) Recreate any of the constraints dropped in step (iii).
Or try in a single step:
ALTER TABLE tablename ALTER column column_name
TYPE numeric USING column_name::numeric;
(replace numeric by the desired type if it's not numeric).
Best regards,
--
Daniel
PostgreSQL-powered mail user agent and storage: http://www.manitou-mail.org
From | Date | Subject | |
---|---|---|---|
Next Message | Joshua D. Drake | 2010-02-24 20:27:46 | Re: Cast char to number |
Previous Message | Richard Huxton | 2010-02-24 20:22:07 | Re: Cast char to number |