Oracle Query获取数据

Question

请帮助如何编写Oracle查询以获得结果（在3个单独的列中），如“ abcd 1,5,7 xyz ”从下表中，我想将COL3包含为单独的列。请帮忙

 Oracle Database table
    ======================
    col1  |  col2 | col3
    ======================
    ABCD      1     xyz
    ======================
    EDF       3     lmn
    ======================
    ABCD      5     xyz
    ======================
    ABCD      7     xyz
    ======================

    Thanks in advance. :) 

Answer 1

select   col1, listagg(col2, ',') within group (order by col2) as new_col_name
from     table_name
group by col1;