How can I group (by) two joined tables How can I group (by) two joined tables (in an Oracle database) like this:

cant:
id      CANT_VAL    COD_VAL
18059   18.56       R12
18060   11          R10
18061   15          R11

col:
FK_ID_COL_DMA   CANT_VAL    COD_VAL
18059           1134        R10
18059           1234        R3
18061           1111        R5


to look like that:

id      CANT_VAL    COD_VAL
18059   18.56       R12
18059   1134        R10
18059   1234        R3
18060   11          R10
18061   15          R11
18061   1111        R5


Thanks!
That is not a GROUP BY, but UNION:

select * from cant
union
select * from col
order by id, cant_val;