Oracle查詢得到的數據

Question

請幫忙如何編寫Oracle查詢得到的結果
（3單獨列）就像從下面表「ABCD 1,5,7 XYZ」 我想包括COL3作爲分離柱。請幫助

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;