alter database backup controlfile

script is as follows:1 -- insert a data record of 10 years into date_log, and then check whether the data exists. 2 SQL> insert into Tina. date_log values (sysdate + 10*365 ); 3 SQL> commit; 4 SQL> alter session set nls_date_format = 'yyyy-mm-dd hh24: MI: ss '; 5 SQL> select create_date from Tina. date_log; Step 2: create a backup script Using scripts to create and execute commands is a fast, simple, and

open state, use the alter database backup controlfile to trace command to back up the control file to the trace file Two methods are available to control file recovery. 1) Use recover database using backup

cessation of the archiving process B.log the files in the archive redo log target directory C. Restarting the archive process D. Backup archived redo log files 3. Use ALTER DATABASE backup Controlfile command to back up copy files The Log_archive_dest directory may be full

backup files, you can use this data to recover more information in the event of a problem. Hot backup requires the database to operate in Archivelog mode and requires a large amount of file space. Once the database is running in the Archivelog state, it can be backed up. The command file for a hot

needs to view archive mode $ sqlplus/as sysdbaSQL> Archive log listDatabase log mode No archive ModeAutomatic archival DisabledArchive destination offline online log sequence 18 Current log sequence 20 change Archive mode mode: Disable Database SQL> shutdown immediate start database to mount status SQL> startup mount change to archive mode (noarchivelog is not archive Mode) SQL>

tablespace using Ocopy.exe and then place the tablespace in the end backup mode (Ocopy.exe cannot be used to copy the online database files directly).(4) Perform steps 2 and 3 for each tablespace in the database (view dba_tablespaces and v$datafile to see which tablespaces and data files are in the database).(5) To ob

file:A. Temporary cessation of the archiving processB.log the files in the archive redo log target directoryC. Restarting the archive processD. Backup archived redo log files3. Use ALTER DATABASE backup Controlfile command to back up copy filesThe Log_archive_dest directory

the database is started). (2) Place a table space that needs to be backed up in the start Backup mode. (3) Use Ocopy.exe to copy the tablespace, and then place the tablespace in the end backup mode (Ocopy.exe cannot be used for direct copy of the online database file). (4) Perform steps 2 and 3 for each tablespace in

Summary of database backup and Restoration Technology of the IT Ninja Turtles, and backup of the Ninja Turtles Database 1. exp/imp (export and import the library and unload the database) 1.1 Basic commands 1. Get help $ Exp help = y $ Imp help = y2. Three ways of working (1

database backup Controlfile to '/home/oracle/backup_ctl/prod4_ctl_20170703 '; To back up a logical file: sql> ALTER DATABASE backup Controlfile to trace as '/home/oracle/backup_ctl/pro

file manifest. For example, if V$log indicates that sequence#2334 is the last archived log file, you can successfully back up files in the archive redo log target directory with all the numbers below 2334. If you attempt to back up 2335, you can make a successful backup at the operating system level, but since this file is not fully archived, the backup may be written in half and therefore cannot be useful

RMAN backup full databaseBackup database; -- backup the entire databaseBackup database format '\ xxxxxx \ xxx _ % U'; -- backs up the entire database to the specified pathBackup tablespace users; -- backup tablespaceBackup datafil

, you can make a successful backup at the operating system level, but since this file is not fully archived, the backup may be written in half and therefore cannot be useful during the recovery operation.(3) Restart the archive process archExecute Command archive log start to launch the archive process arch.(4) Backup archive redo log filePerform the operating sy

to 09 RMAN> Backup current controlfile for standby format = 'd: \ backup \ % d _ % S. Bak '; Start backup from 17-2 to 09Use channel ora_disk_1Channel ora_disk_1: Start all data file backup SetsChannel ora_disk_1: Specifies the data file in the

/oracle/arch_dir ' Scope=both;System altered.sql> shutdown ImmediateDatabase closed.Database dismounted.ORACLE instance shut down.sql> startup Mount;ORACLE instance started.Total System Global area 167772160 bytesFixed Size 1218316 bytesVariable Size 71305460 bytesDatabase buffers 92274688 bytesRedo buffers 2973696 bytesDatabase mounted.sql> ALTER DATABASE open;Database