How to display text in reverse order ?

Question

I was wondering how to display data [text-numbers...etc] in the reversed order.
E.g.
if the data is as follows:
ORACLE
it should be displayed as:
ELCARO
thanx in advance !

Answer 1

An alternative would be a MODEL clause solution:Nice!
Here another alternative with only one measure:
SQL> create table t
  2  as
  3  select 'bocajijA' col1 from dual union all
  4  select 'ORACLE' from dual union all
  5  select null from dual
  6  /
Tabel is aangemaakt.
SQL> select old_col
  2       , col1
  3    from t
  4   model
  5         partition by (col1 old_col)
  6         dimension by (0 i)
  7         measures (col1)
  8         rules iterate(10000) until (iteration_number = length(col1[0])-1)
  9         ( col1[0]
10           = substr(col1[0],1,iteration_number) ||
11             substr(col1[0],length(col1[0]),1) ||
12             substr(col1[0],iteration_number + 1, length(col1[0])-iteration_number-1)
13         )
14  /
OLD_COL  COL1
bocajijA Ajijacob
ORACLE   ELCARO
3 rijen zijn geselecteerd.Regards,
Rob.