Am getting error error when am using wm_concat funcation.

Question

hi all
am getting error error when am using wm_concat funcation.
SQL> DECLARE
2 ex VARCHAR2(200);
3 BEGIN
4 SELECT wm_concat(ename) INTO EX FROM EMP WHERE deptno=30;
5 DBMS_OUTPUT.PUT_LINE(EX);
6 END;
7
8 .
SQL>
SQL> /
DECLARE
ERROR at line 1:
ORA-06550: line 4, column 10:
PL/SQL: ORA-00904: "WM_CONCAT": invalid identifier
ORA-06550: line 4, column 3:
PL/SQL: SQL Statement ignoredThanks for all in advance
Edited by: maddy on 9 Jan, 2012 10:02 PM

Answer 1

>
WM_CONCAT is undocumented and unsupported by Oracle, meaning it should not be used in production systems.
>
so change your way
btw
for me
SQL> select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for 32-bit Windows: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
SQL> set serveroutput on
SQL> DECLARE
  2   ex varchar2(200);
  3   BEGIN
  4   SELECT wm_concat(ename) INTO EX FROM EMP WHERE deptno=30;
  5   DBMS_OUTPUT.PUT_LINE(EX);
  6   END;
  7  /
ALLEN,WARD,MARTIN,BLAKE,TURNER,JAMES
PL/SQL procedure successfully completed.
SQL> try wmsys.wm_concat