Selecting into a varray

Question

BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE     11.2.0.3.0     Production
TNS for HPUX: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production
CREATE TABLE mytable
  JOB_REQUEST_ID       NUMBER(10),             
  USER_ID              NUMBER(6)  
SET DEFINE OFF;
Insert into MYTABLE
   (JOB_REQUEST_ID, USER_ID)
Values
   (4610756, 7926);
Insert into MYTABLE
   (JOB_REQUEST_ID, USER_ID)
Values
   (4610756, 8318);
Insert into MYTABLE
   (JOB_REQUEST_ID, USER_ID)
Values
   (4610757, 7926);
Insert into MYTABLE
   (JOB_REQUEST_ID, USER_ID)
Values
   (4610757, 8318);
Insert into MYTABLE
   (JOB_REQUEST_ID, USER_ID)
Values
   (4610758, 7926);
Insert into MYTABLE
   (JOB_REQUEST_ID, USER_ID)
Values
   (4610758, 8318);
COMMIT;this works fine for a comma delimited list
SELECT job_request_id,
         LISTAGG (user_id, ',') WITHIN GROUP (ORDER BY user_id) user_ids
    FROM mytable
GROUP BY job_request_id;
JOB_REQUEST_ID     USER_IDS
4610756     7926,8318
4610757     7926,8318
4610758     7926,8318however I'm getting an error when trying to select it into a varray I'm not quite sure what I am doing incorrectly.
SELECT job_request_id,
         CAST (COLLECT (USER_ID) AS SYS.OdcinumberList) user_ids
    FROM mytable
GROUP BY job_request_id;
ORA-22814: attribute or element value is larger than specified in type

Answer 1

sorry not following.
the sys.odciNumberList is predefined in the sys schema as
CREATE OR REPLACE TYPE ODCINumberList AS VARRAY(32767) of NUMBERand the following works ok.
with t as (
           select 1 main_id,2 employee_id from dual union all
           select 2,3 from dual union all
           select 3,4 from dual union all
           select 4,5 from dual
select  cast(collect(employee_id) as sys.OdciNumberList) thelist
  from  t;