From: Roger Moloney <ramoloney@hotmail.com>
To: pgsql-interfaces@postgresql.org
Subject: ecpg: HOW TO READ RECORD ??
Date: Thu, 23 Aug 2007 14:55:10 +0000
Message-ID: <BAY115-F20EFAFF003B91E1FD30DE7AFD60@phx.gbl> (raw)
Hi,
We use ecpg (embedded sql) and plpgsql (postgres functions).
I'm having trouble trying to get embedded SQL to read the result of a
plpgsql function which returns RECORD or SETOF RECORD.
Does anyone have an example of this ? I don't see it in the ecpg source
examples or in the ecpg manual.
/* following is an example of plpgsql to illustrate the data being returned
*/
/* type defined for the record that the function will return to avoid using
column list */
create type tp_GetPerson as (
person_name char(40),
person_age smallint
);
/* this function returns zero or more tp_GetPerson records */
create function p_GetPersonByDept (pperson_dept integer)
returns SETOF tp_GetPerson as
$$
declare
v_record tp_GetPerson%ROWTYPE;
begin
for v_record in
select person_name, person_age from person where person_dept =
pperson_dept
loop
return next v_record;
end loop;
return;
end
$$
language 'plpgsql';
WHAT SHOULD THE ECPG PROGRAM LOOK LIKE THAT CAN READ THE DATA RETURNED ?
thanks,
RML
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To: pgsql-interfaces@postgresql.org
Cc: ramoloney@hotmail.com
Subject: Re: ecpg: HOW TO READ RECORD ??
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