Oracle Database Triggers Database Auditing

a need

Auditing of Databases - Based on Worth Auditing Functions

When the salary increase exceeds 6,000, audit the employee's information

two code

1. --触发器应用场景3：数据库的审计，基于值得审计
2. --给员工涨工资，当涨后的薪水超过6000时，审计该员工信息
3. --创建表，用于保存审计信息
4. /*
5. create table audit_info
6. (
7. information varchar2(200)
8. );
9. */
11. create or replace trigger do_audit_emp_salay
12. after update
13. on emp
14. for each row
15. begin
16. if:new.sal >6000then
17. insert into audit_info values(:new.empno||' '||:new.ename||' '||:new.sal);
18. endif;
19. end;

 

Three verification

SQL> select * from audit_info;

 

INFORMATION

--------------------------------------------------------------------------------

7566 JONES 9075

7698 BLAKE 8850

7782 CLARK 8450

7788 SCOTT 7000

7839 KING 12101

7902 FORD 7000

 

6 rows are selected.