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
John Newton was an eighteenth century British slave trader who had a dramatic faith experience during a storm at sea. He gave his life to God, left the slave trade, became a pastor, and wrote hymns. âAmazing Grace! (how sweet the sound),â Newton wrote, âThat saved a wretch like me! I once was lost, but now am found, was blind but now I see.â{1} He played a significant role in the movement to abolish the slave trade. Newtonâs song and story have inspired millions.