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 a renowned author, prolific composer of 270 published hymns; e.g., Amazing Grace, How Sweet the Name of Jesus Sounds, Jacobâs Ladder (2), Approach My Soul the Mercy-Seat, Glorious Things of Thee are Spoken and countless unpublished hymns.