Hi,



I have created the database with 3 schemas.

Example : Schema names : Newyorlk, Atlanta,California



Each schema has a similar tables. But there can be schema specific tables
too.



I want to create a user define functions to retrieve information.



----------------------------------------------------------------------

CREATE OR REPLACE FUNCTION Newyorlk.get_customer_name (custid integer,
invoice integer)

RETURNS varchar AS

$$



DECLARE

m_display varchar (100);

m_status varchar(10);

BEGIN



SELECT cname INTO m_display from Newyorlk.CUSTOMER

WHERE id = custid;



SELECT status INTO m_status from Newyorlk.CUSTOMER_INVOICE

WHERE id = invoice;



m_display := m_display||'-'|| m_status ;



RETURN m_display;

END;

$$

LANGUAGE 'plpgsql' VOLATILE;

--------------------------------------------------------------------



In the above function if I change Newyorlk.CUSTOMER to CUSTOMER . It gives
a runtime error saying table not available.

I think when I remove the schema name, posgresSql checks the table in the
public schema.



But in Oracle, when we give the schema name with the function name, it
assumes all the objects within the functions are referring to that schema.

Do you know any other way to do a user define function, without hard cording
schema name each time when referring to a table.



Thanks in Advance

Lathika

use
set search_path = yourschemaname
to set the schema before calling the function

On 7/27/05, Lathika Wijerathne <lathika@rezgateway.com> wrote:
>
> Hi,
>
> I have created the database with 3 schemas.
>
> Example : Schema names : Newyorlk, Atlanta,California
>
> Each schema has a similar tables. But there can be schema specific tables
> too.
>
> I want to create a user define functions to retrieve information.
>
> ----------------------------------------------------------------------
>
> CREATE OR REPLACE FUNCTION Newyorlk.get_customer_name (custid integer,
> invoice integer)
>
> RETURNS varchar AS
>
> $$
>
> DECLARE
>
> m_display varchar (100);
>
> m_status varchar(10);
>
> BEGIN
>
> SELECT cname INTO m_display from Newyorlk.*CUSTOMER*
>
> WHERE id = custid;
>
> SELECT status INTO m_status from Newyorlk.*CUSTOMER_INVOICE*
>
> WHERE id = invoice;
>
> m_display := m_display||'-'|| m_status ;
>
> RETURN m_display;
>
> END;
>
> $$
>
> LANGUAGE 'plpgsql' VOLATILE;
>
> --------------------------------------------------------------------
>
> In the above function if I change Newyorlk.*CUSTOMER to CUSTOMER . *It
> gives a runtime error saying table not available.
>
> I think when I remove the schema name, posgresSql checks the table in the
> public schema.
>
> But in Oracle, when we give the schema name with the function name, it
> assumes all the objects within the functions are referring to that schema..
>
> Do you know any other way to do a user define function, without hard
> cording schema name each time when referring to a table.
>
> Thanks in Advance
>
> Lathika
>
>


--
with regards,
S.Gnanavel
Satyam Computer Services Ltd.