Oracle 控制文件
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<span style="background-color:inherit;line-height:1.5;">Oracle 控制文件 </span>
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一. Oracle 控制文件内容
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我们可以通过v$controlfile_record_section 视图查看控制文件里包含的内容。
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SQL> select type from v$controlfile_record_section;
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TYPE
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DATABASE
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CKPT PROGRESS
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REDO THREAD
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REDO LOG
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DATAFILE
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FILENAME
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TABLESPACE
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TEMPORARY FILENAME
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RMAN CONFIGURATION
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LOG HISTORY
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OFFLINE RANGE
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ARCHIVED LOG
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BACKUP SET
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BACKUP PIECE
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BACKUP DATAFILE
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BACKUP REDOLOG
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DATAFILE COPY
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BACKUP CORRUPTION
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COPY CORRUPTION
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DELETED OBJECT
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PROXY COPY
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BACKUP SPFILE
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DATABASE INCARNATION
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FLASHBACK LOG
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RECOVERY DESTINATION
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INSTANCE SPACE RESERVATION
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REMOVABLE RECOVERY FILES
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RMAN STATUS
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THREAD INSTANCE NAME MAPPING
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MTTR
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DATAFILE HISTORY
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STANDBY DATABASE MATRIX
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GUARANTEED RESTORE POINT
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RESTORE POINT
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DATABASE BLOCK CORRUPTION
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ACM OPERATION
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FOREIGN ARCHIVED LOG
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37 rows selected.
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二. 可以通过dump看到控制文件内
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2.1 直接dump controlfile
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alter system set events'immediate trace name controlf level 10'
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2.2. 使用alter database backup controlfile to filename
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以上两种方法生成的dump文件是不可读的即乱码。 只有生成trace后，才是可读的。
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2.2. 使用alter database backup controlfile to trace
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生成的trace 文件在udump目录下，可以通过日期来判断。
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SQL>show parameteruser_dump_dest
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也可以使用如下SQL 查询对应的trace 文件：
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SELECT a.VALUE ||b.symbol|| c.instance_name|| '_ora_' ||d.spid|| '.trc'
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trace_file
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FROM (SELECT VALUE
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FROMv$parameter
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WHERE name = 'user_dump_dest') a,
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(SELECT SUBSTR (VALUE, -6, 1)symbol
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FROMv$parameter
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WHERE name = 'user_dump_dest') b,
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(SELECTinstance_name FROMv$instance) c,
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(SELECTspid
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FROMv$session s,v$process p,v$mystat m
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WHERE s.paddr= p.addrAND s.sid = m.sid AND m.statistic#= 0) d
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TRACE_FILE
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--------------------------------------------------------------------------------
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/u01/app/oracle/admin/dave/udump/dave_ora_7215.trc
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整个Trace 的内容如下：
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[oracle@qs-dmm-rh3 udump]$ cat dave_ora_7215.trc
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/u01/app/oracle/admin/dave/udump/dave_ora_7215.trc
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Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 -Production
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With the Partitioning, OLAP, Data Mining and Real ApplicationTesting options
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ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1
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System name: Linux
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Node name: qs-dmm-rh3
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Release: 2.6.18-194.el5
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Version: #1 SMP Tue Mar16 21:52:43 EDT 2010
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Machine: i686
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Instance name: dave
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Redo thread mounted by this instance: 0 <none>
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Oracle process number: 15
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Unix process pid: 7215, image: oracle@qs-dmm-rh3 (TNS V1-V3)
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*** ACTION NAME:() 2011-03-17 22:05:46.401
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*** MODULE NAME:(sqlplus@qs-dmm-rh3 (TNS V1-V3)) 2011-03-1722:05:46.401
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*** SERVICE NAME:() 2011-03-17 22:05:46.401
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*** SESSION ID:(159.1) 2011-03-17 22:05:46.401
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ORA-01160: file is not a data file
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ORA-01110: data file : '/u01/app/oracle/oradata/dave/temp01.dbf'
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*** 2011-03-17 22:08:25.791
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Control file created with size 370 blocks
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*** 2011-03-17 22:10:21.444
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tkcrrsarc: (WARN) Failed to find ARCH for message (message:0x1)
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tkcrrpa: (WARN) Failed initial attempt to send ARCH message(message:0x1)
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kwqmnich: current time:: 14: 10: 24
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kwqmnich: instance no 0 check_only flag 1
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kwqmnich: initialized job cache structure
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krvscm(+): Validating controlfile with logical metadata
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krvscm(+): Initial controlfile state
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krvscm(+): kccdiflg [400001]kccdifl2 [1000]
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krvscm(+): kccdi2ldscn[0x0000.00000000]
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krvscm(+): kccdi2lrscn[0x0000.00000000]
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krvscm(+): Inspecting logical metadata
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krvscm(+): Metadata state
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krvscm(+): hasPrepSwitchSta[0]
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krvscm(+): hasPrepSwitchPri[0]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): hasReceivedDict[0]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): hasDumpedDict [0]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): hasCommittedBor[0]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): hasSwitchedFromPri [0]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): hasStartedTa [0]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): hasValidSess [0]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): hasTxnConsistency[0]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): hasCleanlyShutdown [0]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): Generating new controlfile state from metadata
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): Updating controlfile with new state
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): New controlfile state
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): kccdiflg [400001]kccdifl2 [1000]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): kccdi2ldscn[0x0000.00000000]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): kccdi2lrscn[0x0000.00000000]
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): Updating SGA associated with controlfile state
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
krvscm(+): Validation complete
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
*** 2011-03-17 22:13:21.115
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- The following are current System-scope REDO Log Archival related
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- parameters and can be included in the database initializationfile.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST=''
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DUPLEX_DEST=''
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_FORMAT=%t_%s_%r.dbf
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- DB_UNIQUE_NAME="dave_st"
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_CONFIG='SEND, RECEIVE'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_CONFIG='DG_CONFIG=("dave_pd")'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_MAX_PROCESSES=2
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- STANDBY_FILE_MANAGEMENT=AUTO
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- STANDBY_ARCHIVE_DEST=/u01/archivelog
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- FAL_CLIENT=dave_st
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- FAL_SERVER=dave_pd
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_2='SERVICE=dave_pd'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_2='OPTIONAL REOPEN=120 NODELAY'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_2='LGWR NOAFFIRM NOEXPEDITE NOVERIFYASYNC=61440'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_2='REGISTER NOALTERNATE NODEPENDENCY'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_2='NOMAX_FAILURE NOQUOTA_SIZE NOQUOTA_USED'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_2='DB_UNIQUE_NAME=dave_pd'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_2='VALID_FOR=(STANDBY_LOGFILE,STANDBY_ROLE)'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_STATE_2=ENABLE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_1='LOCATION=/u01/archivelog'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_1='OPTIONAL REOPEN=300 NODELAY'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_1='ARCH NOAFFIRM NOEXPEDITE NOVERIFY SYNC'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_1='REGISTER NOALTERNATE NODEPENDENCY'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_1='NOMAX_FAILURE NOQUOTA_SIZE NOQUOTA_USED'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_1='DB_UNIQUE_NAME=dave_st'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_1='VALID_FOR=(PRIMARY_ROLE,ONLINE_LOGFILES)'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- LOG_ARCHIVE_DEST_STATE_1=ENABLE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Below are two sets of SQL statements, each of which creates a new
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- control file and uses it to open the database. The first setopens
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- the database with the NORESETLOGS option and should be used onlyif
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- the current versions of all online logs are available. The second
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- set opens the database with the RESETLOGS option and should beused
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- if online logs are unavailable.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- The appropriate set of statements can be copiedfrom the trace into
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- a script file, edited as necessary, andexecuted when there is a
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- need to re-create the control file.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Set#1. NORESETLOGS case
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--对使用noresetlogs 的说明
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- The following commands will create a new control file and use it
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- to open the database.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Data used by Recovery Manager will be lost.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Additional logs may be required for media recovery of offline
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Use this only if the current versions of all online logs are
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- available.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- After mounting the created controlfile, the following SQL
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- statement will place the database in the appropriate
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- protection mode:
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- ALTER DATABASE SET STANDBYDATABASE TO MAXIMIZE PERFORMANCE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
STARTUP NOMOUNT
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
CREATE CONTROLFILE REUSE DATABASE "DAVE" NORESETLOGS ARCHIVELOG
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
MAXLOGFILES 16
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
MAXLOGMEMBERS 2
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
MAXDATAFILES 30
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
MAXINSTANCES 1
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
MAXLOGHISTORY 292
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
LOGFILE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
GROUP 1'/u01/app/oracle/oradata/dave/redo01.log' SIZE 50M,
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
GROUP 2'/u01/app/oracle/oradata/dave/redo02.log' SIZE 50M,
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
GROUP 3'/u01/app/oracle/oradata/dave/redo03.log' SIZE 50M
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- STANDBY LOGFILE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
DATAFILE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/system01.dbf',
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/undotbs01.dbf',
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/sysaux01.dbf',
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/users01.dbf'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
CHARACTER SET ZHS16GBK
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--以上是创建控制文件的语法
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Commands to re-create incarnation table
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Below log names MUST be changed to existing filenames on
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- disk. Any one log file from each branch can be used to
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- re-create incarnation records.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- ALTER DATABASE REGISTER LOGFILE '/u01/archivelog/1_1_746031707.dbf';
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Recovery is required if any of the datafiles are restoredbackups,
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- or if the last shutdown was not normal orimmediate.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
RECOVER DATABASE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- All logs need archiving and a log switch isneeded.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
ALTER SYSTEM ARCHIVE LOG ALL;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Database can now be opened normally.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
ALTER DATABASE OPEN;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Commands to add tempfiles to temporary tablespaces.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Online tempfiles have complete space information.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Other tempfiles may require adjustment.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
ALTER TABLESPACE TEMP ADD TEMPFILE '/u01/app/oracle/oradata/dave/temp01.dbf'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SIZE 32505856 REUSE AUTOEXTEND OFF;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--这里是要注意的地方，重建控制文件的时候，不能写上临时表空间，等控制文件创建完毕之后，在手工的执行SQL加上临时表空间。
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- End of tempfile additions.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Set#2. RESETLOGS case
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--第二种情况，使用resetlogs 的说明
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- The following commands will create a new control file and use it
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- to open the database.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Data used by Recovery Manager will be lost.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- The contents of online logs will be lost and all backups will
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- be invalidated. Use this only if online logs are damaged.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- After mounting the created controlfile, the following SQL
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- statement will place the database in the appropriate
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- protection mode:
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- ALTER DATABASE SET STANDBYDATABASE TO MAXIMIZE PERFORMANCE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
STARTUP NOMOUNT
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
CREATE CONTROLFILE REUSE DATABASE "DAVE" RESETLOGS ARCHIVELOG
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
MAXLOGFILES 16
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
MAXLOGMEMBERS 2
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
MAXDATAFILES 30
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
MAXINSTANCES 1
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
MAXLOGHISTORY 292
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
LOGFILE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
GROUP 1'/u01/app/oracle/oradata/dave/redo01.log' SIZE 50M,
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
GROUP 2'/u01/app/oracle/oradata/dave/redo02.log' SIZE 50M,
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
GROUP 3 '/u01/app/oracle/oradata/dave/redo03.log' SIZE 50M
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- STANDBY LOGFILE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
DATAFILE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/system01.dbf',
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/undotbs01.dbf',
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/sysaux01.dbf',
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/users01.dbf'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
CHARACTER SET ZHS16GBK
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Commands to re-create incarnation table
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Below log names MUST be changed to existing filenames on
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- disk. Any one log file from each branch can be used to
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- re-create incarnation records.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- ALTER DATABASE REGISTER LOGFILE '/u01/archivelog/1_1_746031707.dbf';
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Recovery is required if any of the datafilesare restored backups,
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- or if the last shutdown was not normal or immediate.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
RECOVER DATABASE USING BACKUP CONTROLFILE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Database can now be opened zeroing the online logs.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
ALTER DATABASE OPEN RESETLOGS;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Commands to add tempfiles to temporary tablespaces.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Online tempfiles have complete space information.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- Other tempfiles may require adjustment.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
ALTER TABLESPACE TEMP ADD TEMPFILE'/u01/app/oracle/oradata/dave/temp01.dbf'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SIZE 32505856 REUSE AUTOEXTEND OFF;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
-- End of tempfile additions.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
注意里面的几个参数：
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
（1） MAXDATAFILES
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
The MAXDATAFILES optionof CREATE DATABASE determines the number of data files a database can have.With Oracle Real Application Clusters, databases tend to have more data filesand log files than an exclusive mounted database.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
（2） MAXINSTANCES
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
The MAXINSTANCES optionof CREATE DATABASE limits the number of instances that can access a databaseconcurrently. The default value for this option underz/OS is 15. Set MAXINSTANCES to a value greater than the maximum numberof instances you expect to run concurrently.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
（3）MAXLOGFILE and MAXLOGMEMBERS
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
The MAXLOGFILES optionof CREATE DATABASE specifies the maximum number of redo log groups that can becreated for the database. The MAXLOGMEMBERS option specifies the maximum numberof members or number of copies per group. Set MAXLOGFILES to the maximum numberof instances you plan to run concurrently multiplied by the maximum anticipatednumber of groups per thread.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
（4）MAXLOGHISTORY
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
The MAXLOGHISTORY optionof CREATE DATABASE specifies the maximum number of redolog files that can be recorded in the log history of the control file.The log history is used for automatic media recovery of Oracle Real ApplicationClusters.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
ForOracle Real Application Clusters, set MAXLOGHISTORY to a large value, such as100. The control file can then store information about this number ofredo log files. When the log history exceeds this limit, the Oracle serveroverwrites the oldest entries in the log history. Thedefault for MAXLOGHISTORY is 0 (zero), which disables log history.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
这4个参数中，我们在创建DB 时需要注意的是MAXDATAFILES 和MAXLOGHISTORY。 因为默认值较小。 在创建DB 时就需要把这2个参数设置成较大值。
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
比如MAXDATAFILES 设置成8k，MAXLOGHISTORY 设置成1k。
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
与这几个参数相关的错误：
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
ORA-01164: MAXLOGFILES may not exceed string
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Cause: MAXLOGFILES specified on the command line too large.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Action: Resubmit the command with a smaller MAXLOGFILES
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
ORA-01165:MAXDATAFILES may not exceed string
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Cause: MAXDATAFILES specified on the command line too large.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Action: Resubmit the command with a smaller MAXDATAFILES
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
ORA-01166:file number string is larger than string (string)
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Cause: File mentioned in CREATE CONTROLFILE has a file number whichis larger than that specified for MAXDATAFILES or MAXLOGFILES.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Action: Increase the maximum specified on the command line.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
三. 控制文件的重建
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
不到最后时刻，如三个控制文件都已损坏，又没有控制文件的备份。还是不要重建控制文件，处理不好就会有数据丢失。
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
（1）db 启动到mount状态
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SQL> startup nomount
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
（2）创建控制文件
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
create controlfile reuse database dave noresetlogsarchivelog
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
LOGFILE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
GROUP 1 '/u01/app/oracle/oradata/dave/redo01.log',
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
GROUP 2 '/u01/app/oracle/oradata/dave/redo02.log',
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
GROUP 3 '/u01/app/oracle/oradata/dave/redo03.log'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
DATAFILE
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/sysaux01.dbf',
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/system01.dbf',
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/undotbs01.dbf',
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
'/u01/app/oracle/oradata/dave/users01.dbf'
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
CHARACTER SET ZHS16GBK;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
我这里使用的是noresetlogs，所以直接open数据库就可以了：
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SQL>alter database open;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
如果是resetlogs 创建的控制文件，那么我们就需要使用：
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SQL>alter database open resetlogs;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
来打开DB.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
（3）添加TEMP 表空间
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SQL> ALTER TABLESPACE TEMP ADD TEMPFILE'/u01/app/oracle/oradata/dave/temp01.dbf' size 100M;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Tablespace altered.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
注意：
</div>
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如果使用resetlogs 打开的数据库，就需要对DB做一次备份。
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resetlogs命令表示一个数据库逻辑生存期的结束和另一个数据库逻辑生存期的开始，每次使用resetlogs命令的时候，SCN不会被重置，不过oracle会重置日志序列号，而且会重置联机重做日志内容.
</div>
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这样做是为了防止不完全恢复后日志序列会发生冲突（因为现有日志和数据文件间有了时间差）。
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</div>
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四. 不重建控制文件的情况清理控制文件中记录
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</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
控制文件将内部数据记录分为两类：循环重用记录 和 非循环重用记录。
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<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
（1）循环重用记录包含可以从控制文件中删除的信息。如： RMAN 备份记录，归档日志历史信息，循环重用记录可以被删除，并且不会影响产品数据库。
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
（2）非循环重用记录是那些不能被删除的记录。 非循环重用记录包括 数据文件列表 和日志文件列表。
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</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
我们可以通过重建控制文件或者设置control_file_record_keep_time=0来重用这些记录。
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<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
4.1 手工清理v$archived_log记录
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
参考：
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Removingentries in v$archived_log referencing a particluar DEST_ID [ID 845361.1]
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<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
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<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
示例：
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</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SQL> archive log list;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Database log mode Archive Mode
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Automatic archival Enabled
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Archive destination USE_DB_RECOVERY_FILE_DEST
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Oldest online log sequence 1
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Next log sequence to archive 3
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Current log sequence 3
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
我们查看当前的archivelist是3个。 实际上个数据库我做过多次的open resetlogs。所以我们查询v$archived_log视图，会查看到很多之前的信息。
</div>
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</div>
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<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SQL> select resetlogs_id,sequence# fromv$archived_log order by 1;
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<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
RESETLOGS_ID SEQUENCE#
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
------------ ----------
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<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
56 rows selected.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SQL>
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
我们可以使用dbms_backup_restore.resetCfileSection清除控制文件中的相关记录：
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SQL> execute sys.dbms_backup_restore.resetCfileSection(11);
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
PL/SQL procedure successfully completed.
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
验证：
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SQL> select resetlogs_id,sequence# fromv$archived_log order by 1;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
no rows selected
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
这里所有的记录都被删除了。
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SQL> archive log list;
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Database log mode Archive Mode
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Automatic archival Enabled
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Archive destination USE_DB_RECOVERY_FILE_DEST
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Oldest online log sequence 1
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Next log sequence to archive 3
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
Current log sequence 3
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
SQL>
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
<br style="background-color:inherit;" />
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
注意：
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
我们清空这部分信息，并不影响我们RMAN的恢复，只要归档文件物理存在就可以了。
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
可以用rman的catalog将现有的archive log注册进来
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
RMAN> catalog start with '/data/archivelog';
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
<br style="background-color:inherit;" />
</div>
<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
4.2 手工清理v$rman_status 记录
</div>
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v$rman_status视图记录了如下类型的操作：
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SQL> select distinct operation from v$rman_status;
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OPERATION
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------------------------------------------------------------------
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RESTORE
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RESTORING AND APPLYING LOGS
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RMAN
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INCREMENTAL BACKUP RESTORE
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DELETE
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REPORT
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VERIFYING FILES FOR RECOVERY
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RECOVER
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ALTER DB
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STARTING MEDIA RECOVERY
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BACKUP
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LIST
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12 rows selected.
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SQL> select count(*) from v$rman_status;
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COUNT(*)
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----------
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141
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<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
--清除RMAN_STATUS 记录
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SQL> execute sys.dbms_backup_restore.resetCfileSection(28);
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PL/SQL procedure successfully completed.
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--验证：
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SQL> select count(*) from v$rman_status;
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COUNT(*)
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----------
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0
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4.3 关于resetCfileSection函数中ID号的说明
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在4.1和4.2中我们分别使用了11和28的id。 我们这里看一下这里为什么是这2个号。
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在如下的脚本：
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$ORACLE_HOME/rdbms/admin/dbmsbkrs.sql
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我们可以看到dbms_backup_restore包的创建代码。 在这段代码中给了我们定义的说明。
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-- Valid record types are defined as thefollowing constants:
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RTYP_DB_INFO constant binary_integer := 0;
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RTYP_CKPTPROG constant binary_integer := 1;
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RTYP_THREAD constant binary_integer := 2;
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RTYP_LOGFILE constant binary_integer := 3;
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RTYP_DATAFILE constant binary_integer := 4;
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RTYP_FILENAME constant binary_integer := 5;
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RTYP_TABLESPACE constant binary_integer := 6;
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RTYP_RESERVED1 constant binary_integer := 7;
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RTYP_TEMPFILE constant binary_integer := 7;
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RTYP_RMAN_CONFIGURATION constant binary_integer := 8;
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RTYP_LOG_HISTORY constant binary_integer := 9;
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RTYP_OFFLINE_RANGE constant binary_integer := 10;
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RTYP_ARCHIVED_LOG constant binary_integer := 11;
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RTYP_BACKUP_SET constant binary_integer := 12;
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RTYP_BACKUP_PIECE constant binary_integer := 13;
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RTYP_BACKUP_DFILE constant binary_integer := 14;
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RTYP_BACKUP_LOG constant binary_integer := 15;
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RTYP_DFILE_COPY constant binary_integer := 16;
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RTYP_BACKUP_DFILE_CORR constant binary_integer := 17;
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RTYP_DFILE_COPY_CORR constant binary_integer := 18;
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RTYP_DELETED_OBJECT constant binary_integer := 19;
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RTYP_RESERVED3 constant binary_integer := 20;
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RTYP_PROXY constant binary_integer := 20;
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RTYP_RESERVED4 constant binary_integer := 21;
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RTYP_BACKUP_SPFILE constant binary_integer := 21;
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RTYP_DB2 constant binary_integer := 22;
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RTYP_INCARNATION constant binary_integer := 23;
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RTYP_FLASHBACK constant binary_integer := 24;
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RTYP_RA_INFO constant binary_integer := 25;
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RTYP_INST_RSVT constant binary_integer := 26;
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RTYP_AGED_FILES constant binary_integer := 27;
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RTYP_RMAN_STATUS constant binary_integer := 28;
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RTYP_THREAD_INST constant binary_integer := 29;
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RTYP_MTR constant binary_integer := 30;
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RTYP_DFH constant binary_integer := 31;
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RTYP_SDM constant binary_integer := 32;
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RTYP_RSP constant binary_integer := 33;
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<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
RTYP_NRR constant binary_integer := 34;
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RTYP_BLOCK_CORRUPTION constant binary_integer := 35;
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<div style="font-family:微软雅黑;font-size:14px;line-height:21px;white-space:normal;widows:auto;background-color:#FFFFFF;">
RTYP_ACM_OPERATION constant binary_integer := 36;
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RTYP_FOREIGN_ARCHIVED_LOG constantbinary_integer := 37;
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通过以上的说明，可以理解，我们这里为什么ID是11和28了。
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