Here are some examples of Oracle alter table syntax to modify data columns and note that you can add constraints like NOT NULL: ALTER TABLE customer MODIFY (cust_name varchar2(100) not null, cust_hair_color varchar2(20)) ;
Did Sir Isaac Newton write any books? His best known book is Principia (Philosophiae Naturalis Principia Mathematica) published in 1687; which includes his laws of motion. Edit
Laws of Motion and Gravity. Newtonâs most important book was written in Latin; its title was translated as Mathematical Principles of Natural Philosophy (1687). It proved to be one of the most influential works in the history of science.