Thread: Returnd Refcurser ( not fetchable

Hi!

I have the Problem, that a function returns a refcursor and I am not able to fetch them. I tried in several ways. 

Can you please tell me how to get the cursor data.

Thanks 
Chris

PS this is what I have:

create table foo(sirname text, name text);
insert into foo values ('Mueller', 'Marcus');

create function getfoo(char(1)) returns refcursor as
'
declare   ref refcursor;

begin  open ref for select * from foo where sirname like ''%'' || $1 || ''%'';  return ref;
end;   
'
LANGUAGE 'plpgsql' VOLATILE;

select * from getfoo('M');
* fetch all in '<unnamed portal 11>';

ERROR:  syntax error at or near "'<unnamed portal 11>'" at character 14

-- 
cu
Chris

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create table foo(sirname text, name text); insert into foo values
('Mueller', 'Marcus');

create function getfoo(char(1)) returns refcursor as '
declare  ref refcursor;

begin  open ref for select * from foo where sirname like ''%'' || $1 ||
''%'';  return next ref;
return
end;  
'
LANGUAGE 'plpgsql' VOLATILE;


Copy the above function and execute..i changed at return statement.....


Thanks & Regards
Penchal Reddy



-----Original Message-----
From: pgsql-sql-owner@postgresql.org
[mailto:pgsql-sql-owner@postgresql.org] On Behalf Of Christian Kindler
Sent: Friday, August 10, 2007 11:28 AM
To: pgsql-sql@postgresql.org
Subject: [SQL] Returnd Refcurser (<unnamed portal x> not fetchable

Hi!

I have the Problem, that a function returns a refcursor and I am not
able to fetch them. I tried in several ways.

Can you please tell me how to get the cursor data.

Thanks
Chris

PS this is what I have:

create table foo(sirname text, name text);
insert into foo values ('Mueller', 'Marcus');

create function getfoo(char(1)) returns refcursor as
'
declare  ref refcursor;

begin  open ref for select * from foo where sirname like ''%'' || $1 ||
''%'';  return ref;
end;  
'
LANGUAGE 'plpgsql' VOLATILE;

select * from getfoo('M');
* fetch all in '<unnamed portal 11>';

ERROR:  syntax error at or near "'<unnamed portal 11>'" at character 14

--
cu
Chris

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Sorry but this didn't help ...

Can not return next ... so I changed the returns as too but same effect as the first function:

drop table foo;
create table foo(sirname text, name text);
insert into foo values ('Mueller', 'Marcus');

drop function getfoo(char(1));
create or replace function getfoo(char(1)) returns setof refcursor as
'
declare   ref refcursor;

begin  open ref for select * from foo where sirname like ''%'' || $1 || ''%'';  return next ref;
end;   
'
LANGUAGE 'plpgsql' VOLATILE;

select * from getfoo('M');
-- fetch all in '<unnamed portal 14>';


ERROR:  syntax error at or near "'<unnamed portal 14>'" at character 15

-- 
cu
Chris

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"Christian Kindler" <christian.kindler@gmx.net> writes:
> fetch all in '<unnamed portal 14>';
> ERROR:  syntax error at or near "'<unnamed portal 14>'" at character 15

I think you need double quotes not single quotes here.
        regards, tom lane

On Fri, Aug 10, 2007 at 08:16:28AM +0200, Christian Kindler wrote:
> select * from getfoo('M');
> -- fetch all in '<unnamed portal 14>';
> 
> ERROR:  syntax error at or near "'<unnamed portal 14>'" at character 15

The cursor name is an identifier so use double quotes instead of
single quotes.  Also, when using non-holdable cursors you'll need
to be in a transaction block.

begin;
select * from getfoo('M');
fetch all in "<unnamed portal 14>";
commit;

-- 
Michael Fuhr

Ohhh Yes! 

Thanks al lot. Sometimes you can't see the wood for the trees.

Thanks!
Chris



-------- Original-Nachricht --------
Datum: Fri, 10 Aug 2007 00:31:03 -0600
Von: Michael Fuhr <mike@fuhr.org>
An: Christian Kindler <christian.kindler@gmx.net>
CC: "Penchalaiah P." <penchalaiahp@infics.com>, pgsql-sql@postgresql.org
Betreff: Re: [SQL] Returnd Refcurser (<unnamed portal x> not fetchable

> On Fri, Aug 10, 2007 at 08:16:28AM +0200, Christian Kindler wrote:
> > select * from getfoo('M');
> > -- fetch all in '<unnamed portal 14>';
> > 
> > ERROR:  syntax error at or near "'<unnamed portal 14>'" at character 15
> 
> The cursor name is an identifier so use double quotes instead of
> single quotes.  Also, when using non-holdable cursors you'll need
> to be in a transaction block.
> 
> begin;
> select * from getfoo('M');
> fetch all in "<unnamed portal 14>";
> commit;
> 
> -- 
> Michael Fuhr

-- 
cu
Chris

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