Ordering data based on 2 columns

Question

Hi,
I have a table as below
Name1
Age1
Name2
Age2
a
10
a
15
a
10
a
5
c
20
b
25
e
25
c
18
f
30
d
100
I want to order the table based on both (name1 and name2) and then after on age1 and age2.
the resultant data i require is as below
Name1
Age1
Name2
Age2
null
null
a
5
a
10
null
null
a
10
null
null
null
null
a
15
null
null
b
25
null
null
c
18
c
20
null
null
null
null
d
100
e
25
null
null
f
30
null
null
I am able to get the data by performing an outer join but unable to sort in this fashion. Please suggest.

Answer 1

Another way
with
temp as
(select 'a' name1,10 age1,'a' name2,15 age2 from dual union all
select 'a',10,'a',5 from dual union all
select 'c',20,'b',25 from dual union all
select 'e',25,'c',18 from dual union all
select 'f',30,'d',100 from dual
select *
  from (select name1,age1
          from temp
       ) x
       full outer join
       (select name2,age2
          from temp
       ) y
    on x.name1 = y.name2
   and x.age1 = y.age2
order by coalesce(x.name1,y.name2),coalesce(x.age1,y.age2)
NAME1
AGE1
NAME2
AGE2
a
5
a
10
a
10
a
15
b
25
c
18
c
20
d
100
e
25
f
30
Regards
Etbin