Re: Problem with DROP ROLE

On Wed, 2011-10-19 at 12:11 +0200, Brice André wrote:
> Hello everyone,
>
> I would want to implement an SQL query where I would be able to suppress all
> information from a registered user. I am currenlty able to suppress
> everything except the user role. The name of the role is present in a table
> and so, I would want to perform something like this :
> DROP ROLE (SELECT ...)
> but this is not considered as valid, as DROP ROLE is expecting a name and
> not a text field. So, I tried the following, but with no success :
> DROP ROLE CAST((SELECT...) AS name)
>
> So, does someone knows how to handle this problem ?
>

You can't do it with only one query. You need to use two queries: the
SELECT, and then the DROP.

--
Guillaume
http://blog.guillaume.lelarge.info
http://www.dalibo.com