Oracle provides alter table syntax to modify data columns in-place in this form: alter table table_name modify column_name datatype; If you are brave you can use a single alter table syntax to modify multiple columns:
Julius Robert Oppenheimer (22 April 1904 â 18 February 1967) was an American physicist and the scientific director of the Manhattan Project.
Harry Oppenheimer was the chairman of Anglo American Corporation for a quarter of a century and chairman of De Beers Consolidated Mines for 27 years until he retired from those positions in 1982 and 1984 respectively.