oracle clearing,ORACLE DBA常用命令集锦(2)
ORACLE DBA常用命令集锦(2)[@more@]
接上篇 ORACLE DBA常用命令集锦(1):
sql> revoke create session from scott;
7.grant object privilege
sql> grant execute on dbms_pipe to public;
sql> grant update(first_name,salary) on employee to karen with grant option;
8.display object privilege : view => dba_tab_privs, dba_col_privs
9.revoke object privilege
sql> revoke execute on dbms_pipe from scott [cascade constraints];
10.audit record view :=> sys.aud$
11. protecting the audit trail
sql> audit delete on sys.aud$ by access;
12.statement auditing
sql> audit user;
13.privilege auditing
sql> audit select any table by summit by access;
14.schema object auditing
sql> audit lock on summit.employee by access whenever successful;
15.view audit option : view=> all_def_audit_opts,dba_stmt_audit_opts,dba_priv_audit_opts,dba_obj_audit_opts
16.view audit result: view=> dba_audit_trail,dba_audit_exists,dba_audit_object,
dba_audit_session,dba_audit_statement
第十一章: 规则管理器
1.create roles
sql> create role sales_clerk;
sql> create role hr_clerk identified by bonus;
sql> create role hr_manager identified externally;
2.modify role
sql> alter role sales_clerk identified by commission;
sql> alter role hr_clerk identified externally;
sql> alter role hr_manager not identified;
3.assigning roles
sql> grant sales_clerk to scott;
sql> grant hr_clerk to hr_manager;
sql> grant hr_manager to scott with admin option;
4.establish default role
sql> alter user scott default role hr_clerk,sales_clerk;
sql> alter user scott default role all;
sql> alter user scott default role all except hr_clerk;
sql> alter user scott default role none;
5.enable and disable roles
sql> set role hr_clerk;
sql> set role sales_clerk identified by commission;
sql> set role all except sales_clerk;
sql> set role none;
6.remove role from user
sql> revoke sales_clerk from scott;
sql> revoke hr_manager from public;
7.remove role
sql> drop role hr_manager;
8.display role information
view: =>dba_roles,dba_role_privs,role_role_privs,
dba_sys_privs,role_sys_privs,role_tab_privs,session_roles
第十二章: 备份与恢复
1. v$sga,v$instance,v$process,v$bgprocess,v$database,v$datafile,v$sgastat
2. Rman need set dbwr_IO_slaves or backup_tape_IO_slaves and large_pool_size
3. Monitoring Parallel Rollback
> v$fast_start_servers , v$fast_start_transactions
4.perform a closed database backup (noarchivelog)
> shutdown immediate
> cp files /backup/
> startup
5.restore to a different location
> connect system/manager as sysdba
> startup mount
> alter database rename file '/disk1/../user.dbf' to '/disk2/../user.dbf';
> alter database open;
6.recover syntax
--recover a mounted database
>recover database;
>recover datafile '/disk1/data/df2.dbf';
>alter database recover database;
--recover an opened database
>recover tablespace user_data;
>recover datafile 2;
>alter database recover datafile 2;
7.how to apply redo log files automatically
>set autorecovery on
>recover automatic datafile 4;
8.complete recovery:
--method 1(mounted databae)
>copy c:backupuser.dbf c:oradatauser.dbf
>startup mount
>recover datafile 'c:oradatauser.dbf;
>alter database open;
--method 2(opened database,initially opened,not system or rollback datafile)
>copy c:backupuser.dbf c:oradatauser.dbf (alter tablespace offline)
>recover datafile 'c:oradatauser.dbf' or
>recover tablespace user_data;
>alter database datafile 'c:oradatauser.dbf' online or
>alter tablespace user_data online;
--method 3(opened database,initially closed not system or rollback datafile)
>startup mount
>alter database datafile 'c:oradatauser.dbf' offline;
>alter database open
>copy c:backupuser.dbf d:oradatauser.dbf
>alter database rename file 'c:oradatauser.dbf' to 'd:oradatauser.dbf'
>recover datafile 'e:oradatauser.dbf' or recover tablespace user_data;
>alter tablespace user_data online;
--method 4(loss of data file with no backup and have all archive log)
>alter tablespace user_data offline immediate;
>alter database create datafile 'd:oradatauser.dbf' as 'c:oradatauser.dbf''
>recover tablespace user_data;
>alter tablespace user_data online
5.perform an open database backup
> alter tablespace user_data begin backup;
> copy files /backup/
> alter database datafile '/c:/../data.dbf' end backup;
> alter system switch logfile;
6.backup a control file
> alter database backup controlfile to 'control1.bkp';
> alter database backup controlfile to trace;
7.recovery (noarchivelog mode)
> shutdown abort
> cp files
> startup
8.recovery of file in backup mode
>alter database datafile 2 end backup;
9.clearing redo log file
>alter database clear unarchived logfile group 1;
>alter database clear unarchived logfile group 1 unrecoverable datafile;
10.redo log recovery
>alter database add logfile group 3 'c:oradataredo03.log' size 1000k;
>alter database drop logfile group 1;
>alter database open;
or >cp c:oradataredo02.log' c:oradataredo01.log
>alter database clear logfile 'c:oradatalog01.log';
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