Oracle解決自增長

conn scott/tiger@powermis

drop table foo;

create table foo(
  id number primary key,
  data varchar2(100));

create sequence foo_seq;

create or replace trigger bifer_foo_id_pk
  before insert
    on foo
    for each row
begin
  select foo_seq.nextval into :new.id from dual;
end;
/

insert into foo(data)
  values('Chirstopher');

insert into foo(id,data)
  values(5,'Sean');

select * from foo;