ORACLE—plsql创建触发器语句

发布时间：2020-12-12 16:03:42 所属栏目：百科来源：网络整理

导读：create or replace trigger TIB_T_EXAM before insert on t_exam for each rowdeclare integrity_error exception; errno integer; errmsg char(200); dummy integer; found boolean;begin -- Column ID uses sequence SEQ_T_EXAM select SEQ_T_EXAM.NEXTVAL

create or replace trigger TIB_T_EXAM
  before insert on t_exam  
  for each row
declare
   integrity_error  exception;
    errno            integer;
    errmsg           char(200);
    dummy            integer;
    found            boolean;
begin
    --  Column ID uses sequence SEQ_T_EXAM
    select SEQ_T_EXAM.NEXTVAL INTO :new.ID from dual;


--  Errors handling
exception
    when integrity_error then
       raise_application_error(errno,errmsg);
  
end TIB_T_EXAM;

（编辑：李大同）

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