Retruring Multiple rows from a Stored Procedure

Question

The Oracle JDBC documentation shows how to return a cursor pointer through the parameter list of a stored procedure allowing a Java program to use the cursor like a normal result set. I've tried it (using the thin driver) and it works fine - however, I'm having trouble getting this to work running the program under a Weblogic server (using their own JDBC implementation). So, I have two questions:
1) Has anyone had this problem before and solved it ??
2) Are there any other techniques for getting multiple rows back from the database without having to fire "raw" sql at it ?

Answer 1

Hi
You could return not resultset but array, for example:
PACKAGE TEST:
type string_table is table of varchar2(80)
index by binary_integer;
function get_something (
something1 out string_table,
arraylength in number
) return number;
PACKAGE'S BODY:
function get_something (
something1 out string_table,
arraylength in number /** length of the array **/
) return number as
cursor C is
select something1, ...
from test_table;
pos number := 1;
begin
for position in C loop
exit when (pos > arraylength);
something1(pos) := position.something1;
pos := pos + 1;
end loop;
return (pos - 1);
end;
Of course in this example you need to know length of your array
(arraylength parameter), but you can avoid such problem, for
example, by using DBMS_SQL package (or dynamic SQL feature in
the Oracle8i).
Andrew
Mladen Gogala (guest) wrote:
: Phil Hildebrand (guest) wrote:
: : Is there a way that I can return multiple rows from a stored
: : procedure for function ?
: : Something like:
: : CREATE FUNCTION sp_get_children (my_nip IN port.nip_num%
TYPE)
: : RETURN my_nip
: : IS
: : CURSOR child_cur IS
: : SELECT nip_num
: : FROM logical_port
: : WHERE port_num = my_nip;
: : child_rec child_cur%rowtype;
: : BEGIN
: : FOR child_rec IN child_cur
: : LOOP
: : RETURN my_nip;
: : END LOOP;
: : END tmp_sp_get_children;
: : I know how to do it in Informix ( RETURN WITH RESUME ), but
: I'm
: : not running Informix ;)
: : Thanks,
: : Phil
: In contrast with Informix, SQL Server and Sybase, Oracle
: can not return a result set. the only workaround is to
: return the cursor variable as such.
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