create table M_TRANSACTION_TYPE
(
OPERATION_ID number primary key,
OPERATION_TYPE number,
OPERATION_TIME date,
CRM_ID varchar2(36),
);
create sequence M_TRANSACTION_TYPE_SEQ nocycle;
create or replace M_TRANSACTION_TYPE_TRIGGER
before insert on M_TRANSACTION_TYPE
for each row
begin
select M_TRANSACTION_TYPE_SEQ.NEXTVAL into :new.OPERATION_ID from dual;
end;
请问这个有什么问题,执行的时候出现,执行完毕,但带有警告;导致我下面sql脚本无法执行。