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.
J. Robert Oppenheimer was born on April 22, 1904. While Oppenheimer often claimed the J stood for nothing, his birth certificate shows it to stand for Julius (his father's first name). Oppenhimer's brother, Frank, thought his parents did not want J. Robert to be known as a junior.