创建一个日志表，记录dept表的DML操作
create table dept_log(logid number,type varchar2(50),logdate date,deptno number,dname varchar2(50),loc varchar2(50));
create sequence dept_log_seq;
create or replace trigger dept_update_trigger10
before insert or update or delete
on dept
for each row
begin
if inserting then
insert into dept_log(logid,type,logdate,deptno,dname,loc)
values(dept_log_seq.nextval,'insert',sysdate,:new.deptno,:new.dname,:new.loc);
elsif updating then
insert into dept_log(logid,type,logdate,deptno,dname,loc)
values(dept_log_seq.nextval,'update',sysdate,:new.deptno,:new.dname,:new.loc);
else
insert into dept_log(logid,type,logdate,deptno,dname,loc)
values(dept_log_seq.nextval,'delete',sysdate,:old.deptno,:old.dname,:old.loc);
end if;
end;
/
DDL操作日志记录表创建脚本
drop table object_log purge;
drop sequence object_log_seq;
create sequence object_log_seq;
create table object_log(
oid number constraint pk_okd primary key,
username varchar2(50) not null,
operatedate date not null,
objecttype varchar2(50) not null,
objectowner varchar2(50) not null);
编写触发器实现对数据库对象操作的日志记录
create or replace trigger object_trigger
after create or drop or alter
on database
declare
begin
insert into scott.object_log VALUES
(scott.object_log_seq.nextval,ora_login_user,sysdate,ora_dict_obj_type,ora_dict_obj_owner);
end;
/