Change a column name

Question

What is the correct syntax to change a column name. say
ID VARCHAR2(10)
to
ID_NO VARCHAR2(10)

Answer 1

You can alternatively do this:
Connect as sys user and run the following script:
SELECT obj# from obj$
where name = 'Your_Table_Name';
SELECT col# from col$
where obj# = obj# from previous query
and name = 'your_column_name which you want to rename';
update col$ set name = 'your_new_name'
where obj# = obj# from the first query
and col# = col# from previous query;
Alter system flush shared_pool;
connect as your user and you will see the change there.
Hope this helps
Rajeev