backup schema

Rman command1. Independent commandRman>shutdown ImmediateRman>startupRman>backup format ' D:\backup\%d_%s.bak ' tablespace users;2. Job OrderRman>run {backup format ' d:\backup\ $d _%s.bak ' tablespace users;}3. Run SQL commandRman>sql ' alter

Oracle 11g R2 Rman BackupDefinition and classification of backup and recoveryDefinition and classification of backup: 备份就是把数据库复制到转储设备的过程。其中，转储设备是指用于放置数据库副本的磁带或磁盘。通常也将存放于转储设备中的数据库的副本称为原数据库的备份或转储。备份是一份数据副本，从不同的角度分类如下：From a physical and logical

1. Check the database mode:Sqlplus/nologConn/As sysdbaArchive log list (check whether the database is in archive Mode) If not, the database archive mode is modified.Startup MountAlter database archivelogAlter database open 2. connect to the target

I. concepts related to RMAN backup 1. in RMAN backup, The tablespace does not need to be in backup mode. It backs up data files, archive log files, control files, spfiles, and backup sets, but does not back up online redo log files, temporary files

Oracle backup tools, file naming formats, rman operations, and mongolerman I. Common tools: Recovery Manager: rman can only perform Hot Standby (mount or open state)Oracle Secure BackupUser-managed backup: cp/dd [if =/of =/blocksize =]   Ii. rman

Faults in Oracle are divided into the following 4 types.1) Statement failureA logical failure occurred during the execution of the SQL statement when the statement failed. For example, inserting invalid data into a table that violates a constraint,

1. Check the database mode:Sqlplus/nologConn/As sysdbaArchive log list (check whether the database is in archive Mode) If not, the database archive mode is modified.Startup MountAlter database archivelogAlter database open 2. connect to the

1. Check the database schema:Sqlplus/nologConn/as SYSDBAArchive log list (to see if the database is in archive mode) If it is not archived, the database archive mode is modified.Startup MountALTER DATABASE ArchivelogALTER DATABASE Open 2. Connect to

 Topics We are not going to include:Security (Access to backup, permissions to restore data, whether files need to be encrypted) where backups are stored, including how far they should be from source data, and how to move data from source to

Purpose of the backup　　Data loss scenarios such as disaster recovery, hardware failure, software failure, natural disaster, hacker attacks, misoperation testing, etc.Backup Note points　Can tolerate the maximum amount of data lostHow long does it