drop table Simple_Tbl;create table Simple_Tbl  (   id                   NUMBER(9)                        not null,   name                 VARCHAR2(30));insert into Simple_Tbl(id, name) values (1, 'kevin');insert into Simple_Tbl(id, name) values (2, 'george');insert into Simple_Tbl(id, name) values (3, 'larry');insert into Simple_Tbl(id, name) values (4, 'renee');commit;