Re: scripts in Postgres - Mailing list pgsql-general

Hi Sean

Thanks for that. Does psql work differently to pgAmin III's Query program? I
have tried exactly what you showed me below, and it did not work. It seems
like the script stops on first error, and the first error is that the table
does not exist.

Thanks
Craig

----- Original Message -----
From: "Sean Davis" <sdavis2@mail.nih.gov>
To: "Craig Bryden" <postgresql@bryden.co.za>; "pgsql"
<pgsql-general@postgresql.org>
Sent: Monday, May 02, 2005 2:11 PM
Subject: Re: [GENERAL] scripts in Postgres


> DROP TABLE tb_messages;
> CREATE TABLE tb_messages (
> ....
> );
>
> That should do it.  Save that as a text file, for example 'test.sql', from
> an editor.  Then, start up psql:
>
> psql databasename
>
> and type at the psql prompt (where test.sql is in the current directory):
>
> \i test.sql
>
> Sean
>
> ----- Original Message -----
> From: "Craig Bryden" <postgresql@bryden.co.za>
> To: "Sean Davis" <sdavis2@mail.nih.gov>; "pgsql"
> <pgsql-general@postgresql.org>
> Sent: Monday, May 02, 2005 8:05 AM
> Subject: Re: [GENERAL] scripts in Postgres
>
>
> > Hi
> >
> > Thanks for the reply. Since I don't intend using any of the interfaces
at
> > the moment, How would I write the script below in SQL then.
> > Please keep in mind that I will be sending this script to other people
to
> > run and that it needs to be totally automated.
> >
> > Thanks
> > Craig
> >
> > ----- Original Message -----
> > From: "Sean Davis" <sdavis2@mail.nih.gov>
> > To: "Craig Bryden" <postgresql@bryden.co.za>; "pgsql"
> > <pgsql-general@postgresql.org>
> > Sent: Monday, May 02, 2005 1:57 PM
> > Subject: Re: [GENERAL] scripts in Postgres
> >
> >
> >> Yes, pl/pgsql needs to be written as a function.  If you want to
"script"
> >> things, that is done in SQL or via one of the interfaces for perl,
> >> python,
> >> java, etc.  You can just do the DROP TABLE, ignore the error message if
> > the
> >> table doesn't exist, and then create the table.  The documenation is
> >> quite
> >> good, so check out:
> >>
> >> http://www.postgresql.org/docs/8.0/interactive/server-programming.html
> >>
> >> for many examples.
> >>
> >> Sean
> >>
> >> ----- Original Message -----
> >> From: "Craig Bryden" <postgresql@bryden.co.za>
> >> To: "pgsql" <pgsql-general@postgresql.org>
> >> Sent: Monday, May 02, 2005 7:21 AM
> >> Subject: [GENERAL] scripts in Postgres
> >>
> >>
> >> > Hi
> >> >
> >> > I am fairly new to Postgres and am struggling to understand one
> >> > concept.
> >> > If
> >> > I wish to use pl/pgsql, must it be in a function?
> >> > An example of where I would not want it to be in a function is:
> >> >
> >> > I have a CREATE TABLE statement that I want to execute. But the
script
> >> > must
> >> > first check for the existence of the table. I wrote the following
code,
> >> > but
> >> > it errors on the first word (IF). Please tell me how to do this:
> >> >
> >> >
> >> > IF EXISTS (SELECT * FROM information_schema.tables WHERE table_Name =
> >> > 'tb_Messages')
> >> > DROP TABLE tb_Messages;
> >> >
> >> > CREATE TABLE tb_Messages (
> >> > MessageID bigserial PRIMARY KEY,
> >> > From varchar(255),
> >> > To varchar(255),
> >> > DateSent timestamp not null DEFAULT current_timestamp,
> >> > Subject varchar(255) NULL,
> >> > MessageBody Text null,
> >> > IsRead smallint default 0,
> >> > DeleteFlag smallint default 0,
> >> > AdditionalInfo int NULL,
> >> > ReplyToMessage bigint NULL
> >> >
> >> > ) WITHOUT OIDS;
> >> >
> >> > Thanks
> >> > Craig
> >> >
> >> >
> >> > ---------------------------(end of
> >> > broadcast)---------------------------
> >> > TIP 5: Have you checked our extensive FAQ?
> >> >
> >> >               http://www.postgresql.org/docs/faq
> >> >
> >>
> >>
> >>
> >>
> >
>
>
>
>