Oracle非主键自增长
create sequence JCDA_GFYYXX_ID
minvalue 1
maxvalue 99999999
start with 21
increment by 1
cache 20;
create or replace trigger JCDA_GFYYXX_TB_ID_CFQ
before insert on JCDA_GFYYXX_TB --JCDA_GFYYXX_TB为表名
for each row
declare
-- local variables here
nextid number; --自定义变量，用于存储从序列中取得的值
begin
IF :new.OBJECTID IS NULL or :new.OBJECTID=0 THEN
select JCDA_GFYYXX_ID.NEXTVAL --从序列中取得下一个值，赋给变量nextid
into nextid
from DUAL;
:new.OBJECTID:=nextid;
end if;
end TRG_MAGGIE_TEST_TID;