oracle如何打开控制文件,看一看oracle控制文件里面的内容
众所周知，oracle数据库的控制文件是很小的二进制文件，是打不开的，打开了也是乱码，但可以通过转储文件来获得控制文件的详细信息。
alter database backup controlfile to trace ;
再到这个路径去打开控制文件：
D:\oracle\product\admin\cisdb\udump\(我的机器是这个路径)
在$ORACLE_HOME/admin/SID/udump下可找到最新生成的TRACE文件
cisdb_ora_3212.trc
使用记事本打开即可：
很详细：
*** 2010-03-16 21:21:09.484
-- The following are current System-scope REDO Log Archival related
-- parameters and can be included in the database initialization file.
--
-- LOG_ARCHIVE_DEST=''
-- LOG_ARCHIVE_DUPLEX_DEST=''
--
-- LOG_ARCHIVE_FORMAT=arc%s_%r.%t.dbf
--
-- DB_UNIQUE_NAME="cisdb"
--
-- LOG_ARCHIVE_CONFIG='SEND, RECEIVE, NODG_CONFIG'
-- LOG_ARCHIVE_MAX_PROCESSES=2
-- ARCHIVE_LAG_TARGET=1800
-- STANDBY_FILE_MANAGEMENT=MANUAL
-- STANDBY_ARCHIVE_DEST=%ORACLE_HOME%\RDBMS
-- FAL_CLIENT=''
-- FAL_SERVER=''
--
-- LOG_ARCHIVE_DEST_1='LOCATION=d:\oracle\product\arc'
-- LOG_ARCHIVE_DEST_1='OPTIONAL REOPEN=300 NODELAY'
-- LOG_ARCHIVE_DEST_1='ARCH NOAFFIRM NOEXPEDITE NOVERIFY SYNC'
-- LOG_ARCHIVE_DEST_1='REGISTER NOALTERNATE NODEPENDENCY'
-- LOG_ARCHIVE_DEST_1='NOMAX_FAILURE NOQUOTA_SIZE NOQUOTA_USED NODB_UNIQUE_NAME'
-- LOG_ARCHIVE_DEST_1='VALID_FOR=(PRIMARY_ROLE,ONLINE_LOGFILES)'
-- LOG_ARCHIVE_DEST_STATE_1=ENABLE
--
-- Below are two sets of SQL statements, each of which creates a new
-- control file and uses it to open the database. The first set opens
-- the database with the NORESETLOGS option and should be used only if
-- the current versions of all online logs are available. The second
-- set opens the database with the RESETLOGS option and should be used
-- if online logs are unavailable.
-- The appropriate set of statements can be copied from the trace into
-- a script file, edited as necessary, and executed when there is a
-- need to re-create the control file.
--
-- Set #1. NORESETLOGS case
--
-- The following commands will create a new control file and use it
-- to open the database.
-- Data used by Recovery Manager will be lost.
-- Additional logs may be required for media recovery of offline
-- Use this only if the current versions of all online logs are
-- available.
-- After mounting the created controlfile, the following SQL
-- statement will place the database in the appropriate
-- protection mode:
-- ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE PERFORMANCE
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "CISDB" NORESETLOGS ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 292
LOGFILE
GROUP 1 'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO01.LOG' SIZE 50M,
GROUP 2 'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO02.LOG' SIZE 50M,
GROUP 3 (
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO03.LOG',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO03B.LOG'
) SIZE 50M,
GROUP 4 (
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO04A.LOG',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO04B.LOG',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO04C.LOG'
) SIZE 50M
-- STANDBY LOGFILE
DATAFILE
'D:\ORACLE\PRODUCT\ORADATA\CISDB\SYSTEM01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNDOTBS01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\SYSAUX01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\USERS01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\EXAMPLE01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\USERS02.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNDOTBS02.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\BLOCK.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\ORA_DATA_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\ORA_DATA1_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\AUTOALLOCATE_TBS_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNIFORM_TBS_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNIFORM_TBS_02.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\4K_TBS01.DBF'
CHARACTER SET ZHS16GBK
;-- Commands to re-create incarnation table
-- Below log names MUST be changed to existing filenames on
-- disk. Any one log file from each branch can be used to
-- re-create incarnation records.
-- ALTER DATABASE REGISTER LOGFILE 'D:\ORACLE\PRODUCT\ARC\ARC1_706788810.1.DBF';
-- ALTER DATABASE REGISTER LOGFILE 'D:\ORACLE\PRODUCT\ARC\ARC1_707362059.1.DBF';
-- Recovery is required if any of the datafiles are restored backups,
-- or if the last shutdown was not normal or immediate.
RECOVER DATABASE
-- All logs need archiving and a log switch is needed.
ALTER SYSTEM ARCHIVE LOG ALL;
-- Database can now be opened normally.
ALTER DATABASE OPEN;
-- Commands to add tempfiles to temporary tablespaces.
-- Online tempfiles have complete space information.
-- Other tempfiles may require adjustment.
ALTER TABLESPACE TEMP ADD TEMPFILE 'D:\ORACLE\PRODUCT\ORADATA\CISDB\TEMPO2.DBF'
SIZE 20971520 REUSE AUTOEXTEND OFF;
-- End of tempfile additions.
--
-- Set #2. RESETLOGS case
--
-- The following commands will create a new control file and use it
-- to open the database.
-- Data used by Recovery Manager will be lost.
-- The contents of online logs will be lost and all backups will
-- be invalidated. Use this only if online logs are damaged.
-- After mounting the created controlfile, the following SQL
-- statement will place the database in the appropriate
-- protection mode:
-- ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE PERFORMANCE
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "CISDB" RESETLOGS ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 292
LOGFILE
GROUP 1 'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO01.LOG' SIZE 50M,
GROUP 2 'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO02.LOG' SIZE 50M,
GROUP 3 (
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO03.LOG',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO03B.LOG'
) SIZE 50M,
GROUP 4 (
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO04A.LOG',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO04B.LOG',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO04C.LOG'
) SIZE 50M
-- STANDBY LOGFILE
DATAFILE
'D:\ORACLE\PRODUCT\ORADATA\CISDB\SYSTEM01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNDOTBS01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\SYSAUX01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\USERS01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\EXAMPLE01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\USERS02.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNDOTBS02.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\BLOCK.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\ORA_DATA_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\ORA_DATA1_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\AUTOALLOCATE_TBS_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNIFORM_TBS_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNIFORM_TBS_02.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\4K_TBS01.DBF'
CHARACTER SET ZHS16GBK
;
-- Commands to re-create incarnation table
-- Below log names MUST be changed to existing filenames on
-- disk. Any one log file from each branch can be used to
-- re-create incarnation records.
-- ALTER DATABASE REGISTER LOGFILE 'D:\ORACLE\PRODUCT\ARC\ARC1_706788810.1.DBF';
-- ALTER DATABASE REGISTER LOGFILE 'D:\ORACLE\PRODUCT\ARC\ARC1_707362059.1.DBF';
-- Recovery is required if any of the datafiles are restored backups,
-- or if the last shutdown was not normal or immediate.
RECOVER DATABASE USING BACKUP CONTROLFILE
-- Database can now be opened zeroing the online logs.
ALTER DATABASE OPEN RESETLOGS;
-- Commands to add tempfiles to temporary tablespaces.
-- Online tempfiles have complete space information.
-- Other tempfiles may require adjustment.
ALTER TABLESPACE TEMP ADD TEMPFILE 'D:\ORACLE\PRODUCT\ORADATA\CISDB\TEMPO2.DBF'
SIZE 20971520 REUSE AUTOEXTEND OFF;
-- End of tempfile additions.
--
备注：蓝色标记部分可以用来重建控制文件！
蓝色部分如下：
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "CISDB" NORESETLOGS ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 292
LOGFILE
GROUP 1 'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO01.LOG' SIZE 50M,
GROUP 2 'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO02.LOG' SIZE 50M,
GROUP 3 (
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO03.LOG',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO03B.LOG'
) SIZE 50M,
GROUP 4 (
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO04A.LOG',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO04B.LOG',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\REDO04C.LOG'
) SIZE 50M
-- STANDBY LOGFILE
DATAFILE
'D:\ORACLE\PRODUCT\ORADATA\CISDB\SYSTEM01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNDOTBS01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\SYSAUX01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\USERS01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\EXAMPLE01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\USERS02.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNDOTBS02.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\BLOCK.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\ORA_DATA_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\ORA_DATA1_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\AUTOALLOCATE_TBS_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNIFORM_TBS_01.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\UNIFORM_TBS_02.DBF',
'D:\ORACLE\PRODUCT\ORADATA\CISDB\4K_TBS01.DBF'
CHARACTER SET ZHS16GBK
;
把上面的控制文件保存在一个脚本中，比方：recreate_controle.sql
再在SQL>里运行该脚本即可生产控制文件。
SQL>@recreate_controle.sql
====================================================================
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