How to place nulls has last rows.Find query for below problem

Question

I have a table..MyTable(value number(10))
select * from Mytable;
value
12
null
13
null
11
null
This is the table i have and the records i have...... and i need output like this
value
12
13
11
null
null
null ..............>ike this i need output for this i use this query i.e
Query-->select value from mytable where value is not null
union all
select value from mytable where value is null
------------>and this query gives only one column result i need multiple results like below: i have table with 2 columns like below
MyTable2(value1 number(10),value2 number(10))
select * fromMyTable2
value1 value2
111 null
null 201
112 null
null 200
110 null
this is the table i have......... and i need output like below
value1 value2
111 201
112 200
110 null
null null
null null
NOTE:: If we use ORDER BY table records order must change, i don't want to change any order....please what is the query for that

Answer 1

I'm not able to find any sense in your request but it can be done:
select value1, value2
from (select value1, rownum rn from
         (select value1 from mytable where value1 is not null
           union all
          select value1 from mytable where value1 is null)
        ) a,
       (select value2, rownum rn from
         (select value2 from mytable where value2 is not null
           union all
          select value2 from mytable where value2 is null)
        ) b
where a.rn = b.rn;You should study some book about relational databases to understand frst of all what a record is, and then that records in a table are not ordered.
Max