Add column to user defined type based on existing table

Question

Hello guys,
I am trying to compile my function which returns a user defined type based on existing table. Throughout the initializing process though my query returns one additional column - SCORE(1). Here is my package:
create or replace
PACKAGE STAFF_AGENCY_PKG AS
TYPE TYPE_SEEKER_TABLE IS TABLE OF TOSS.SEEKER%ROWTYPE;
FUNCTION GET_SEEKERS(IN_KEYWORD IN VARCHAR2)
RETURN TYPE_SEEKER_TABLE PIPELINED;
END STAFF_AGENCY_PKG;
create or replace
PACKAGE BODY STAFF_AGENCY_PKG
AS
FUNCTION GET_SEEKERS(IN_KEYWORD IN VARCHAR2)
RETURN TYPE_SEEKER_TABLE PIPELINED
IS
R_TBL TYPE_SEEKER_TABLE; -- to be returned
BEGIN
FOR R IN(
SELECT Seeker.SEEKER_ID,
Seeker.FIRSTNAME,
Seeker.LASTNAME,
Seeker.NATIONALITY,
Seeker.ISELIGIBLE,
Seeker.BIRTHDATE,
Seeker.ISRECIEVEEMAILS,
Seeker.HIGHESTDEGREE,
Seeker.ETHNICITY,
Seeker.GENDER,
Seeker.ISDISABILITY,
Seeker.DISABILITY,
Seeker.CV,
Seeker.PASSWORD,
Seeker.PREFFERED_CITY,
SEEKER.EMAIL,
SEEKER.JOB_PREFERENCES_ID,
SCORE(1)
FROM SEEKER Seeker
WHERE CONTAINS(CV, '<query>
<textquery lang="ENGLISH" grammar="context">' ||
GET_RELATED_CATEGORIES(IN_KEYWORD) ||
'</textquery>
<score datatype="INTEGER"/>
</query>', 1) > 0
LOOP
PIPE ROW(R); --Error(38,10): PLS-00382: expression is of wrong type
END LOOP;
RETURN;
END GET_SEEKERS;
END STAFF_AGENCY_PKG;
How do I need to amend my user type in order to suffice?
Oracle Release 11.2.0.1.0
Many thanks in advance!

Answer 1

>
How do I need to amend my user type in order to suffice?
>
You will need to create two new TYPEs. One that has all of the columns of the TOSS.SEEKER table and the new SCORE column and then a TYPE that is a table of the first type.
See the Example 12-22 Using a Pipelined Table Function For a Transformation in the PL/SQl language reference
http://docs.oracle.com/cd/B28359_01/appdev.111/b28370/tuning.htm#i53120
Here is the first part
-- Define the ref cursor types and function
CREATE OR REPLACE PACKAGE refcur_pkg IS
  TYPE refcur_t IS REF CURSOR RETURN employees%ROWTYPE;
  TYPE outrec_typ IS RECORD (
    var_num    NUMBER(6),
    var_char1  VARCHAR2(30),
    var_char2  VARCHAR2(30));
  TYPE outrecset IS TABLE OF outrec_typ;
FUNCTION f_trans(p refcur_t)
      RETURN outrecset PIPELINED;
END refcur_pkg;
CREATE OR REPLACE PACKAGE BODY refcur_pkg IS
  FUNCTION f_trans(p refcur_t)
   RETURN outrecset PIPELINED IS
    out_rec outrec_typ;
    in_rec  p%ROWTYPE;
  BEGINModify
  TYPE outrec_typ IS RECORD (
    var_num    NUMBER(6),
    var_char1  VARCHAR2(30),
    var_char2  VARCHAR2(30));
  TYPE outrecset IS TABLE OF outrec_typ;to include all of the columns you need. Unfortunately you will have to manually list all of the columns of the TOSS.SEEKER table. If you expect to need this same structure in other places you should create them as SQL types instead of PL/SQL types.
This example should be enough to show you how to change your code to do something similar.