CHIL-ORACLE-修改密码
--1.修改oracle用户密码 ->dos: set oracle_sid =数据库名; ->输入: sqlplus “/as sysdata” ; 进入oracle管理界面 ->查找指定用户:select username ,password from dba_users where username=’SYSTEM’; ->修改system密码:alter user system identified by password; ->使用修改后的密码执行备份工作:exy system/oracle full=y file=d:\grx.dmp; ->将密码改回原始状态 Sqlplus “/as sysdba” alter user system identified by values ‘123456’ ; 管理口令及相关资源(managing password security and resourecs) --2.修改用户账号、解锁及口令(controlling account lock and password) alter user jumcky identified by oracle account unlock; --3.user_privided password function function_name(userid in varchar2(30),password in varchar2(30),old_password in varchar2(30)) return boolean --4.创建概要文件:设置口令参数(create a profile : password setting) create profile grace_5 limit failed_login_attempts 3 password_lock_time unlimited password_life_time 30 password_reuse_time 30 password_verify_function verify_function password_grace_time 5; --5.修改概要文件(altering a profile) alter profile default limit failed_lofin_attemppts 3 password_life_time 60; --6.删除概要文件(drop a profile) drop profile grace_5 [cascade]; --7.创建概要文件:设置资源限制(create a profile : resource limit) create profile developer_prof limit sessions_per_user 2 cpu_per_session 10000 idle_time 60 connect_time 480; --8.view =>resource_cost : alter resource cost dba_users,dba_profiles