| Lists: | pgsql-interfaces |
|---|
| From: | Murray Cumming <murrayc(at)murrayc(dot)com> |
|---|---|
| To: | pgsql-interfaces <pgsql-interfaces(at)postgresql(dot)org> |
| Subject: | Connecting without specifying a database |
| Date: | 2005-02-10 11:50:23 |
| Message-ID: | 1108036223.3706.12.camel@localhost.localdomain |
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| Lists: | pgsql-interfaces |
Can PQconnectdb(), or something else, be used without specifying the
dbname in the connection string? I want to connect just so that I can
create a database that does not exist yet.
When I don't specify the dbname, PQconnectdb() tries to connect to a
database with the same name as the user, and then complains that it does
not exist. Is it really necessary for each user to have an empty
database like this?
--
Murray Cumming
murrayc(at)murrayc(dot)com
www.murrayc.com
www.openismus.com
| From: | Robert Treat <xzilla(at)users(dot)sourceforge(dot)net> |
|---|---|
| To: | Murray Cumming <murrayc(at)murrayc(dot)com> |
| Cc: | pgsql-interfaces <pgsql-interfaces(at)postgresql(dot)org> |
| Subject: | Re: Connecting without specifying a database |
| Date: | 2005-02-10 13:12:08 |
| Message-ID: | 200502100812.09410.xzilla@users.sourceforge.net |
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| Lists: | pgsql-interfaces |
On Thursday 10 February 2005 06:50, Murray Cumming wrote:
> Can PQconnectdb(), or something else, be used without specifying the
> dbname in the connection string? I want to connect just so that I can
> create a database that does not exist yet.
>
> When I don't specify the dbname, PQconnectdb() tries to connect to a
> database with the same name as the user, and then complains that it does
> not exist. Is it really necessary for each user to have an empty
> database like this?
Most applications choose to connect to template1 in these scenarios.
--
Robert Treat
Build A Brighter Lamp :: Linux Apache {middleware} PostgreSQL
| From: | Michael Fuhr <mike(at)fuhr(dot)org> |
|---|---|
| To: | Murray Cumming <murrayc(at)murrayc(dot)com> |
| Cc: | pgsql-interfaces <pgsql-interfaces(at)postgresql(dot)org> |
| Subject: | Re: Connecting without specifying a database |
| Date: | 2005-02-10 14:38:29 |
| Message-ID: | 20050210143829.GA68483@winnie.fuhr.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Lists: | pgsql-interfaces |
On Thu, Feb 10, 2005 at 12:50:23PM +0100, Murray Cumming wrote:
>
> Can PQconnectdb(), or something else, be used without specifying the
> dbname in the connection string? I want to connect just so that I can
> create a database that does not exist yet.
See "Environment Variables" in the libpq chapter of the documentation:
http://www.postgresql.org/docs/8.0/static/libpq-envars.html
> When I don't specify the dbname, PQconnectdb() tries to connect to a
> database with the same name as the user, and then complains that it does
> not exist. Is it really necessary for each user to have an empty
> database like this?
No, but you have to connect to *some* database. As Robert Treat
mentioned, you could connect to template1 if you just need to issue
a CREATE DATABASE statement.
--
Michael Fuhr
http://www.fuhr.org/~mfuhr/