--oracle建表
drop table gxdw;
CREATE TABLE gxdw(
id number(11) constraint pk_si_id primary key,
departcode varchar2(20),
departname varchar2(20),
departlevel varchar2(20),
parentdepartcode varchar2(20),
remarks varchar2(20),
update_time date,
is_delete number(1) default 0
);
comment on table gxdw is 'jurisdictional unit';
comment on column gxdw.id is 'id';
comment on column gxdw.departcode is 'department code';
comment on column gxdw.departname is 'department name';
comment on column gxdw. departurelevel is 'department level';
comment on column gxdw.parentdepartcode is 'parent department code';
comment on column gxdw.remarks is 'remarks';
comment on column gxdw.update_time is 'update time';
comment on column gxdw.is_delete is 'has been deleted';
--Realize auto-increment of primary key
--Step 1: create sequence: create
sequence gxdwID_seq
minvalue 1 --minimum value is limited to 1
maxvalue 9999 --maximum value is limited to
increment by 1 --each auto-increment 1
start with 1; -- Start counting from 1
--Step 2: Create a trigger:
create or replace trigger gxdwID_tri
before insert on gxdw
for each row
begin
select gxdwID_seq.Nextval into :new.id from dual;
end ;