第38次活动：2017-12-04（星期一晚上7:00-9:30）
CREATE PROFILE "PROFILE1" LIMIT CPU_PER_SESSION 500;select* from dba_profiles p where p.profile='PROFILE1';
alter user hr profile profile1;
selectu.profilefrom dba_users u where u.username='HR';
$ sqlplus /nolog
SQL*Plus: Release 11.2.0.3.0 Production on Mon Dec 4 19:38:19 2017
Copyright (c) 1982, 2011, Oracle.All rights reserved.
SQL> conn / as sysdba
Connected.
SQL> show parameter resource
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
resource_limit boolean FALSE
resource_manager_cpu_allocation integer 4
resource_manager_plan string
SQL> alter system set resource_limit=true;
System altered.
SQL> conn hr/oracle_4U
Connected.
SQL> select count(*)from employees;
COUNT(*)
----------
107
SQL> select count(*)from employees a , employees b ;
COUNT(*)
----------
11449
SQL> select count(*)from employees a , employees b , employees c ;
COUNT(*)
----------
1225043
SQL> select count(*)from employees a , employees b , employees c , employees d ;
select count(*)from employees a , employees b , employees c , employees d
*
ERROR at line 1:
ORA-02392: exceeded session limit on CPU usage, you are being logged off
SQL>
SQL> conn hr/oracle_4U
Connected.
SQL> select* from employees;
select * from employees
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-02399: exceeded maximum connect time, you are being logged off
SQL>
select* from resource_cost;
alter resource costCPU_PER_SESSION 100;
ALTER PROFILE "PROFILE1" LIMIT PASSWORD_LOCK_TIME 0.000694444
FAILED_LOGIN_ATTEMPTS 1
ALTER PROFILE "PROFILE1" LIMIT PASSWORD_LIFE_TIME 0.000694444
PASSWORD_GRACE_TIME 0.000694444
select u.account_status,u.lock_date , u.expiry_date
from dba_users u where u.username='HR';
select* from dba_profiles p where p.profile='PROFILE1'
and p.resource_type='PASSWORD';
alter profile profile1 limit PASSWORD_REUSE_TIME 0.013888889
PASSWORD_REUSE_MAX 1;
select * from dba_objects o
where o.object_namelike 'VERIFY_FUNCTION%';
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