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.
John Dalton FRS (/ËdÉËltÉn/; 6 September 1766 â 27 July 1844) was an English chemist, physicist, and meteorologist. He is best known for proposing the modern atomic theory, and for his research into colour blindness, sometimes referred to as Daltonism in his honour.