From: | Bruno Wolff III <bruno(at)wolff(dot)to> |
---|---|
To: | Wei Weng <wweng(at)kencast(dot)com> |
Cc: | pgsql-sql(at)postgresql(dot)org |
Subject: | Re: Is there anyway to do this? |
Date: | 2002-10-18 17:13:33 |
Message-ID: | 20021018171333.GA26785@wolff.to |
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Lists: | pgsql-sql |
On Fri, Oct 18, 2002 at 12:45:56 -0400,
Wei Weng <wweng(at)kencast(dot)com> wrote:
> I have a table
>
> Table "Users"
> Column | Type | Modifiers
> -----------+------------------------+-----------
> userid | character varying(40) | not null
> username | character varying(64) |
>
> I want to get all the distinct first character of all usernames. And do
> it in a way that is the most portable to MS SQL server.
>
> Is there anyway?
Looking through the documentation on string functions would be helpful.
An example solution is:
select distinct substring(username from 1 for 1) from users;
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