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
Isaac Newton was one of the worldâs great scientists because he took his ideas, and the ideas of earlier scientists, and combined them into a unified picture of how the universe works. Isaac Newton explained the workings of the universe through mathematics. He formulated laws of motion and gravitation.ir Isaac Newton Isaac Newton was born in 1642 in a manor house in Lincolnshire, England. His father had died two months before his birth. When Isaac Newton was three his mother remarried, and Isaac remained with his grandmother.