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.
Robert Graves. For other people named Robert Graves, see Robert Graves (disambiguation). Robert von Ranke Graves (also known as Robert Ranke Graves and most commonly Robert Graves; 24 July 1895 â 7 December 1985) was an English poet, novelist, critic and classicist.