重建控制文件具体解释

-- 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=%t_%s_%r.dbf
--
-- DB_UNIQUE_NAME="gs01ehis"
--
-- LOG_ARCHIVE_CONFIG='SEND, RECEIVE, NODG_CONFIG'
-- LOG_ARCHIVE_MAX_PROCESSES=2
-- STANDBY_FILE_MANAGEMENT=MANUAL
-- STANDBY_ARCHIVE_DEST=?/dbs/arch
-- FAL_CLIENT=''
-- FAL_SERVER=''
--
-- LOG_ARCHIVE_DEST_1='LOCATION=/paic/stg/oracle/10g/app102056/oracle/product/10.2.0/dbs/arch'
-- LOG_ARCHIVE_DEST_1='MANDATORY NOREOPEN NODELAY'
-- LOG_ARCHIVE_DEST_1='ARCH NOAFFIRM EXPEDITE NOVERIFY SYNC'
-- LOG_ARCHIVE_DEST_1='NOREGISTER 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 "GS01EHIS" NORESETLOGS FORCE LOGGING NOARCHIVELOG
    MAXLOGFILES 32
    MAXLOGMEMBERS 3
    MAXDATAFILES 800
    MAXINSTANCES 8
    MAXLOGHISTORY 18696
LOGFILE
  GROUP 1 '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/redo01.log'  SIZE 100M,
  GROUP 2 '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/redo02.log'  SIZE 100M,
  GROUP 3 '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/redo03.log'  SIZE 100M
-- STANDBY LOGFILE

DATAFILE
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/system01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/undotbs01.dbf',
   '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/system01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/undotbs01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/sysaux01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/users01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/auddata01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/dbadata01.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 '/paic/stg/oracle/10g/app102056/oracle/product/10.2.0/dbs/arch1_1_807985002.dbf';
-- ALTER DATABASE REGISTER LOGFILE '/paic/stg/oracle/10g/app102056/oracle/product/10.2.0/dbs/arch1_1_807987054.dbf';
-- Recovery is required if any of the datafiles are restored backups,
-- or if the last shutdown was not normal or immediate.
RECOVER DATABASE

-- Set Database Guard and/or Supplemental Logging
ALTER DATABASE ADD SUPPLEMENTAL LOG DATA;
-- Database can now be opened normally.
ALTER DATABASE OPEN;

-- Files in read-only tablespaces are now named.
ALTER DATABASE RENAME FILE 'MISSING00030'
  TO '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/fwy01.dbf';

-- Online the files in read-only tablespaces.
ALTER TABLESPACE "FWY01" ONLINE;
-- Commands to add tempfiles to temporary tablespaces.
-- Online tempfiles have complete space information.
-- Other tempfiles may require adjustment.
ALTER TABLESPACE TEMP ADD TEMPFILE '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/temp01.dbf' REUSE;
-- 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 "GS01EHIS" RESETLOGS FORCE LOGGING NOARCHIVELOG
    MAXLOGFILES 32
    MAXLOGMEMBERS 3
    MAXDATAFILES 800
    MAXINSTANCES 8
    MAXLOGHISTORY 18696
LOGFILE
  GROUP 1 '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/redo01.log'  SIZE 100M,
  GROUP 2 '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/redo02.log'  SIZE 100M,
  GROUP 3 '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/redo03.log'  SIZE 100M
-- STANDBY LOGFILE

DATAFILE
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/system01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/undotbs01.dbf',
     '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/system01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/undotbs01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/sysaux01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/users01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/auddata01.dbf',
  '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/dbadata01.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.
-- re-create incarnation records.
-- ALTER DATABASE REGISTER LOGFILE '/paic/stg/oracle/10g/app102056/oracle/product/10.2.0/dbs/arch1_1_807985002.dbf';
-- ALTER DATABASE REGISTER LOGFILE '/paic/stg/oracle/10g/app102056/oracle/product/10.2.0/dbs/arch1_1_807987054.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

-- Set Database Guard and/or Supplemental Logging
ALTER DATABASE ADD SUPPLEMENTAL LOG DATA;
-- Database can now be opened zeroing the online logs.
ALTER DATABASE OPEN RESETLOGS;

-- Files in read-only tablespaces are now named.
ALTER DATABASE RENAME FILE 'MISSING00030'
  TO '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/fwy01.dbf';

-- Online the files in read-only tablespaces.
ALTER TABLESPACE "FWY01" ONLINE;
-- Commands to add tempfiles to temporary tablespaces.
-- Online tempfiles have complete space information.
-- Other tempfiles may require adjustment.
ALTER TABLESPACE TEMP ADD TEMPFILE '/paic/drsh101/stg/ehis/data/oradata/gs01ehis/temp01.dbf' REUSE;
-- End of tempfile additions.

当然，用set也没关系。仅仅是将数据文件头的db_name重写成同样的。就如update t set i=3 where i=3一样。假设想改变数据文件头的db_name使他们与起库參数的db_name一致，就当然得用set咯。