Обсуждение: How to successfully create a new function?

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Moon, James <moonj@pbworld.com> wrote:

> Good day!  A little help, please….
>
>
>
> Postgresql 8.3
>
> pgAdmin III  v.1.8.4
>
>
>
> Creating a new function, or modifying an existing function to:
>
>
>
> CREATE OR REPLACE FUNCTION "sp_SetScenario"(scen character varying) RETURNS
> void AS
>
> $BODY$DECLARE
>
>                sqlStatement varchar(500);
>
> BEGIN
>
>                SET sqlStatement = 'ALTER USER postgres WITH DEFAULT_SCHEMA =
> $1';
>
>                EXEC(sqlStatement);
>
> END;
>
> $BODY$
>
> LANGUAGE 'sql' VOLATILE
>
> COST 100;


You have to change:

- language pgpgsql, not sql, sql don't contains variables
- change exec() to execute


>
> ______________________________________________________________________
> NOTICE: This communication and any attachments ("this message") may contain
> confidential information for the sole use of the intended recipient(s). Any
> unauthorized use, disclosure, viewing, copying, alteration, dissemination or
> distribution of, or reliance on this message is strictly prohibited. If you
> have received this message in error, or you are not an authorized recipient,
> please notify the sender immediately by replying to this message, delete this
> message and all copies from your e-mail system and destroy any printed copies.

Please try to avoid this bullshit...



Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect.                              (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly."   (unknown)
Kaufbach, Saxony, Germany, Europe.              N 51.05082°, E 13.56889°

Andreas,

Thank you for your advice--query and other:

This query:

CREATE OR REPLACE FUNCTION "sp_SetScenario"(scen character varying) RETURNS void AS

$BODY$DECLARE

               sqlStatement varchar(500);

BEGIN

               SET sqlStatement = 'ALTER USER postgres WITH DEFAULT_SCHEMA = $1';

               EXECUTE(sqlStatement);

END;

$BODY$

LANGUAGE 'pgpsql' VOLATILE

COST 100;

 

 

returns:

 

ERROR:  language "pgpsql" does not exist

********** Error **********

ERROR: language "pgpsql" does not exist

SQL state: 42704

 

The only language options in the New Function “wizard” in pgAdmin III are:

internal

c

sql

I would be grateful for any further suggestions from you or others.

You should "install" the language in your database.

 Fredag 30. mars 2012 17.17.19 skrev Jim Moon :

> ERROR:  language "pgpsql" does not exist

The language is called plpgsql.

regards, Leif
http://code.google.com/p/yggdrasil-genealogy/

Leif Biberg Kristensen <leif@solumslekt.org> wrote:

>  Fredag 30. mars 2012 17.17.19 skrev Jim Moon :
>
> > ERROR:  language "pgpsql" does not exist
>
> The language is called plpgsql.

Yeah, that was my fault, sorry.


Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect.                              (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly."   (unknown)
Kaufbach, Saxony, Germany, Europe.              N 51.05082°, E 13.56889°