Using collection variables

Question

Hi could you please help me in putting the values (Output from the query ) into collection variable
The following is the sample one i tried , but confused to use this Record variable.
CREATE OR REPLACE PACKAGE Pkg_test
IS
  ----- Record Variable ----
  TYPE rec_job IS RECORD
   ( job1 varchar2(50),
     job2 varchar2(50),
     Rank varchar2(50)
  TYPE typ_job IS TABLE OF rec_job
     INDEX BY VARCHAR2(500)  ;
  ---- Procedure Declaration ----
PROCEDURE proc_job ( p_d1 IN   number, p_d2 number
                     o_Rat     OUT  typ_job );
END Pkg_test
CREATE OR REPLACE PACKAGE BODY Pkg_test
IS
PROCEDURE proc_job ( p_d1 IN   number default 10, p_d2 number default 20
                     o_Rat     OUT  typ_job )
  IS
BEGIN
   select e1_job,e2_job,
case when e1_job =e2_job
     then '0'
      else '1'
      end as Rating    into O_RAT -- How to use this collection variable
       from (
select distinct e1_job,e2_job , rank () over (partition by e1_job ,e2_job order by e1_SAL )rn
from
(select e1.job e1_job,e1.sal e1_sal,e2.job e2_job from
emp e1 , emp e2 where e1.deptno =p_d1 and e2.deptno =p_d2 )
) where rn =1
order by 1,2   
-- How can i keep  e1_job ,e2_job ,Rating values into the collection variable  o_Rat.
-- Could you hint me to do this                          
end;Thank you
Edited by: Smile on May 7, 2012 10:50 AM

Answer 1

Hi Smile,
are you asking how to get the output into a collection variable?
Your o_Rat output parameter is of type typ_job which is an associative array (or index-by table) of records of rec_job type having as index defined as VARCHAR2(500).
Do you have any specific requirement about this table?
Why the index is declared as VARCHAR2(500)?
What do you expect to return as index value?
If it was a nested table or an associative array with index PLS_INTEGER or BINARY_INTEGER you could have used BULK COLLECT INTO if you want to fill your array.
   select e1_job,e2_job,
case when e1_job =e2_job
     then '0'
      else '1'
      end as Rating   
          BULK COLLECT into O_RAT -- How to use this collection variable
       from (
select distinct e1_job,e2_job , rank () over (partition by e1_job ,e2_job order by e1_SAL )rn
from
(select e1.job e1_job,e1.sal e1_sal,e2.job e2_job from
emp e1 , emp e2 where e1.deptno =p_d1 and e2.deptno =p_d2 )
) where rn =1
order by 1,2
{code}
This however is not working in your case unless you modify your table to be either a nested table or an associative array with an integer index.
Please specify what do you expect the output to be.
I suggest you to check the Oracle documentation to understand collections: http://docs.oracle.com/cd/B28359_01/appdev.111/b28370/collections.htm
Regards
Al