compound primary key

[vsolarski]

My oracle table has compound primary key of three columns.
The table was created with CREATE TABLE ..... PRIMARY KEY( field1, field2, field3).... . What will be different if I create table with CREATE TABLE ..........PRIMARY KEY (field2,field3,field1).
Thanks.

[pando]

if your queries say

select *
from xxx
where field1 = x

then index will be used

if you change your compound key then index wont be used