一些不常用的oracle维护命令

时间：2010-11-30 来源：brjl

对象权限
select owner,
       table_name,
       grantor,
       privilege,
       grantable,
       hierarchy,
       'TABLE' /*o.*/ object_type
from dba_tab_privs p
where p.grantee = 'HR'
order by p.owner, p.table_name; 角色
select granted_role, admin_option, default_role
from dba_role_privs
where grantee = 'HR'
order by granted_role; 系统权限
select privilege, admin_option
from dba_sys_privs
where grantee = 'HR'
order by privilege; 表空间限额
select * from dba_ts_quotas where username = 'SYSMAN' order by tablespace_name; 用户或系统角色对应的权限
select * from role_sys_privs where role = 'RESOURCE'
数据库所有的系统权限名称
select DISTINCT NAME from system_privilege_map t WHERE T.NAME LIKE '%SELECT%'
df -h   磁盘空间使用率 show parameter log_archive_format 查看用户的概要文件
select username, profile from dba_users where username='SCOTT'; 查看相应概要文件的各项设置
select resource_name, limit from dba_profiles where profile = 'DEFAULT'; 修改相应的概要文件选项
ALTER PROFILE "DEFAULT" LIMIT CONNECT_TIME 30; 最大连接时间30分钟
ALTER PROFILE "DEFAULT" LIMIT FAILED_LOGIN_ATTEMPTS 3; 最大登录尝试次数 3次 rman 启动自动备份控制文件功能
show all;
CONFIGURE CONTROLFILE AUTOBACKUP clear; #清除设置恢复为默认值
configure controlfile autobackup on;     #设置为自动备份控制文件
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 30 DAYS; #修改保留策略为保留30天
backup archivelog all;         备份归档日志
backup tablespace users;       备份users表空间
backup datafile 3;             备份数据文件 backup incremental level 0 database; 零级备份
backup incremental level 1 database; 一级差异增量
backup incremental level 1 cumulative database format '/oradata/bak/dblevel1.bak'; 一级累计增量 backup as compressed backupset datafile 4;      以压缩方式备份数据文件 4
归档空间满时的处理办法
rm *.arc     先用操作系统命令手工删除部分归档文件
rman target /
change archivelog all validate;
delete noprompt expired archivelog all;
RUN { EXECUTE SCRIPT b_whole_10; } 执行rman的脚本