create table MY_table ( what varchar2(10), who varchar2(10), mark varchar2(10) );
insert into my_table (what, who, mark) values ('Hello', 'world', '!' ); insert into my_table values ('Bye bye', 'ponies', '?' ); insert into my_table (what) values('Hey');
commit;
select what, who, mark from my_table where what='Hello';