Concatenation in a Group by

Question

Hi,
I'd like to concatenate attributes on a vertical basis when I perform a Group by
For example:
TABLE_TEST
ID STATUS
1003 PL
1003 OP
1003 OP
I am looking for
ID STATUS
1003 PL, OP, OP
The query would be something like:
Select ID, concat(STATUS)
From TABLE_TEST
Group by ID
Is that possible? Cheers

Answer 1

SQL> desc table_test;
Name Null? Type
ID NUMBER
STATUS VARCHAR2(20)
SQL> select * from table_test;
ID STATUS
1 a
1 b
2 c
2 d
DECLARE
all_status VARCHAR2(100) := '' ;
comma varchar2(1) := ',';
id number;
id1 number;
status varchar2(20);
flag number := 0;
cursor cur_tabletest is
select id,status from table_test order by id ;
begin
open cur_tabletest;
loop
fetch cur_tabletest into id,status ;
if (flag = 0) then
id1 := id;
flag := 1 ;
end if;
exit when CUR_tabletest%NOTFOUND;
if(id1 = id) then
     all_status := all_status || comma || status ;
else
dbms_output.put_line(id1 || ' ' || ltrim(all_status,',') );
all_status := '';
all_status := all_status || comma || status ;
end if;
id1 := id;
end loop;
dbms_output.put_line(id1 || ' ' || ltrim(all_status,',') );
close CUR_tabletest;
END;
1 a,b
2 c,d
PL/SQL procedure successfully completed.