oracle設置自增

//建表

drop table GUIDE_DATA;
create table GUIDE_DATA(
 id number(11) not null,
 detail varchar2(500) not null,
 type_id varchar2(10),
 subType_id varchar2(10),
 user_id varchar2(10),
 create_date Date,
constraint guide_pk primary key (id)

);

//建seq
create sequence guide_seq increment by 1 start with 1 nomaxvalue nocycle cache 10;

//建觸發器，新增時觸發
create or replace trigger guide_trigger

before insert on GUIDE_DATA for each row

begin

select guide_seq.nextval into :new.id from dual;

end;

//插入數據實驗

insert into guide_data(detail, type_id, subType_id, user_id, create_date) values('111detail','0034','393040','zl',sysdate);
insert into guide_data(detail, type_id, subType_id, user_id, create_date) values('222detail','0035','393040','zl',sysdate);
insert into guide_data(detail, type_id, subType_id, user_id, create_date) values('333detail','0036','393040','zl',sysdate);
insert into guide_data(detail, type_id, subType_id, user_id, create_date) values('444detail','0037','393040','zl',sysdate);
insert into guide_data(detail, type_id, subType_id, user_id, create_date) values('555detail','0034','393040','zl',sysdate);
insert into guide_data(detail, type_id, subType_id, user_id, create_date) values('666detail','0034','393040','zl',sysdate);
commit;

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//刪除seq
DROP SEQUENCE guide_seq;