建序列

--建立序列

create sequence Province_seq

start with 1

increment by 1

minvalue 1

maxvalue 9999999

nocycle

nocache

noorder;

 

--建触发器：

create or replace trigger Province_trigger

  before insert on T_Province

  for each row

begin

    select Province_seq.nextval into:new.ProID from sys.dual;

end;