Hi,
I followed the steps that you told me. An it worked fine. But I have one
problem and that is......when I try to fetch all the resords of a table, it
gives me the folowing error
psqldb=# fetch all from "<unnamed cursor 4>";
less: not found
Why does this happen? and after I get this error, if I try to fetch fewer
number or records say 5, then it returns 0 records.
Does this happen because there are large number of records in the cursor?
And please explain to me how I could execute this in java.
Thanx,
Madhavi Daroor
-----Original Message-----
From: Stephan Szabo [mailto:sszabo@megazone23.bigpanda.com]
Sent: Monday, April 08, 2002 11:01 AM
To: Madhavi Daroor
Cc: pgsql-general@PostgreSQL.org
Subject: RE: [GENERAL] retun cursor
On Mon, 8 Apr 2002, Madhavi Daroor wrote:
> When I do fetch 10 from "unnamed cursor 1"
> It says Query Executed Ok. But when am I really going to see the output?
> When Will I see the records? pLease explain the process.....WHat do I
fetch
> the cursor into?
Here's a simple function and a fetch passed in through
psql -e
create table test1(a int);
CREATE
insert into test1 values (1);
INSERT 156460 1
insert into test1 values (2);
INSERT 156461 1
insert into test1 values (3);
INSERT 156462 1
insert into test1 values (4);
INSERT 156463 1
insert into test1 values (5);
INSERT 156464 1
create function testfunc1(int4) returns refcursor as '
declare
r refcursor;
begin
open r for select * from test1 where a>=$1;
return r;
end;'
language 'plpgsql';
CREATE
begin;
BEGIN
select testfunc1(2);
testfunc1
--------------------
<unnamed cursor 1>
(1 row)
fetch 1 from "<unnamed cursor 1>";
a
---
2
(1 row)
fetch all from "<unnamed cursor 1>";
a
---
3
4
5
(3 rows)
end;
COMMIT