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
These forces are equal and opposite to each other, acting in opposite direction, and hence are called Balanced forces. Due to this the book follows Newtonâs law of motion and hence continues to be in the state of rest. Here the book is said to be in a state of equilibrium. There is no unbalanced force acting on it.