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.
Dr. Roger Poppen, a psychologist at Southern Illinois University at Carbondale and the author of ''Joseph Wolpe'' (Sage, 1995), a biography of the doctor, said: ''He was a major force in steering psychotherapy in the direction of empirical science.