Convert columns to row equivalent to stragg function in oracle sql

Question

Hi,
Sorry i forgot my Oracle version :
SQL> select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bi
PL/SQL Release 10.2.0.3.0 - Production
CORE    10.2.0.3.0      Production
TNS for 64-bit Windows: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - ProductionI searched in google but i didn't found the solution.
I looking for a function in discoverer equivalent to stragg sql function.
Note : stragg function convert columns to rows.
Thanks
SELECT   deptno, stragg ('-' || ename)
    FROM emp_test
GROUP BY deptno;
    DEPTNO STRAGG_STR                                                 
        10 -CLARK-KING-MILLER                                         
        20 -SMITH-FORD-ADAMS-SCOTT-JONES                              
        30 -ALLEN-BLAKE-MARTIN-TURNER-JAMES-WARD                      
3 rows selected.Edited by: Salim Chelabi on 2010-01-29 08:32

Answer 1

Hi again,
*1- I created  my function in my schema.*
CREATE OR REPLACE TYPE t_string_agg AS OBJECT
  g_string  VARCHAR2(32767),
  STATIC FUNCTION ODCIAggregateInitialize(sctx  IN OUT  t_string_agg)
    RETURN NUMBER,
  MEMBER FUNCTION ODCIAggregateIterate(self   IN OUT  t_string_agg,
                                       value  IN      VARCHAR2 )
     RETURN NUMBER,
  MEMBER FUNCTION ODCIAggregateTerminate(self         IN   t_string_agg,
                                         returnValue  OUT  VARCHAR2,
                                         flags        IN   NUMBER)
    RETURN NUMBER,
  MEMBER FUNCTION ODCIAggregateMerge(self  IN OUT  t_string_agg,
                                     ctx2  IN      t_string_agg)
    RETURN NUMBER
SHOW ERRORS
CREATE OR REPLACE TYPE BODY t_string_agg IS
  STATIC FUNCTION ODCIAggregateInitialize(sctx  IN OUT  t_string_agg)
    RETURN NUMBER IS
  BEGIN
    sctx := t_string_agg(NULL);
    RETURN ODCIConst.Success;
  END;
  MEMBER FUNCTION ODCIAggregateIterate(self   IN OUT  t_string_agg,
                                       value  IN      VARCHAR2 )
    RETURN NUMBER IS
  BEGIN
    SELF.g_string := self.g_string || ',' || value;
    RETURN ODCIConst.Success;
  END;
  MEMBER FUNCTION ODCIAggregateTerminate(self         IN   t_string_agg,
                                         returnValue  OUT  VARCHAR2,
                                         flags        IN   NUMBER)
    RETURN NUMBER IS
  BEGIN
    returnValue := RTRIM(LTRIM(SELF.g_string, ','), ',');
    RETURN ODCIConst.Success;
  END;
  MEMBER FUNCTION ODCIAggregateMerge(self  IN OUT  t_string_agg,
                                     ctx2  IN      t_string_agg)
    RETURN NUMBER IS
  BEGIN
    SELF.g_string := SELF.g_string || ',' || ctx2.g_string;
    RETURN ODCIConst.Success;
  END;
END;
SHOW ERRORS
CREATE OR REPLACE FUNCTION string_agg (p_input VARCHAR2)
RETURN VARCHAR2
PARALLEL_ENABLE AGGREGATE USING t_string_agg;
SHOW ERRORS
*2- I ran my query in my schema with sqlplus.*
SELECT deptno,ename,sal, string_agg(ename)over(partition by deptno) AS employees
FROM   emp_test
order by deptno;
    DEPTNO ENAME             SAL EMPLOYEES                                        
        10 CLARK            2450 CLARK,KING,MILLER                                
        10 KING             5000 CLARK,KING,MILLER                                
        10 MILLER           1300 CLARK,KING,MILLER                                
        20 JONES            2975 JONES,FORD,ADAMS,SMITH,SCOTT                     
        20 FORD             3000 JONES,FORD,ADAMS,SMITH,SCOTT                     
        20 ADAMS            1100 JONES,FORD,ADAMS,SMITH,SCOTT                     
        20 SMITH             800 JONES,FORD,ADAMS,SMITH,SCOTT                     
        20 SCOTT            3000 JONES,FORD,ADAMS,SMITH,SCOTT                     
        30 WARD             1250 WARD,TURNER,ALLEN,JAMES,BLAKE,MARTIN             
        30 TURNER           1500 WARD,TURNER,ALLEN,JAMES,BLAKE,MARTIN             
        30 ALLEN            1600 WARD,TURNER,ALLEN,JAMES,BLAKE,MARTIN             
        30 JAMES             950 WARD,TURNER,ALLEN,JAMES,BLAKE,MARTIN             
        30 BLAKE            2850 WARD,TURNER,ALLEN,JAMES,BLAKE,MARTIN             
        30 MARTIN           1250 WARD,TURNER,ALLEN,JAMES,BLAKE,MARTIN             
14 rows selected.
*3- I import this function in discoverer administration*
4- My problem :When i use the function string_agg(ename)over(partition by deptno) in discover deskto i got the error you can't use over in this place.
Any ideas.
Thank in advance.
Regards Salim.