Help with rows and columns

Question

Hi,
Is it posibble in oracle to display the columns in row format?
eg:
Select* from emp;
col1 col2 col3
1 mat 22
The output should be
1
mat
22
this is to be done ina single query..
Plz help..
thanks for ur help..
mathew

Answer 1

SQL> With t As
  2    (Select 'A;B;C' c
  3    From dual),
  4    t2 As
  5    (Select ';'||c||';' c From t)
  6    Select substr(c, instr(c,';',1,Level)+1,
  7                      INSTR(c, ';', 1, Level+1)- INSTR (c, ';', 1, Level)- 1) "Str"
  8    From t2
  9    Connect By Level < length(c) - length(Replace(c,';'))
10  /
Str
A
B
C