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Instance recovery ( crash recovery)
When did it happen? Oracle instance recovery?
Shutdown abort;
Database Exceptions Down drop (machine crashes, power-down ...)
The reason for instance
Oracle Database full recovery and Incomplete recovery, and perform user management for multiple generations recovery, oracle user management
Comparison between full recovery and Incomplete recovery:
1. Full recovery: restores the
RMAN backup and recovery-full recovery and Incomplete recoveryGlossary:
As the name suggests, full recovery means that the index data has not been lost. Incomplete recovery refers to the loss of some data after recovery. They are two rec
650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M01/87/F9/wKioL1fmI3vD8aEIAACH7C0ZO3w479.png "title=" Data recovery. png "alt=" Wkiol1fmi3vd8aeiaach7c0zo3w479.png "/>data recovery schematic diagramTest environment MySQL5.51 first create a new database Lampol data table testCreate Database Lampol;Use Lampol;CREATE TABLE test (ID int (ten), name varchar (10));2 Inserting data informationINSERT into tes
Tags: CREATE table corruption loss size TE suspect data tool log fileData type MSSQL 2008R2 data size 352 MB fault detection Server A few times after the power outage database suspicious cannot attach message 1813, Level 16, State 2, line 1th cannot open the new database ' YXHIS20182 '. CREATE DATABASE abort. Msg 1813, Level 16, State 2, line 1th cannot open the new database ' YXHIS20182 '. CREATE DATABASE abort. Message 9003, Level 20, State 1, the log scan number (2732:125:21) of the log scan
Tags: unable to erb picture Test tips technology can IV spanData type Firebird 2.1 data size 134 GB Fault detection due to the fact that most tables in the database contain BLOB data, power outages result in system tables and large pieces of table exception databases failing to start. customer requirements to restore the entire database, directly can use the repair results of the database after the manual processing system tables, start the database to do backup prompt not found blob, (Cannot f
Format reload system, only to think of Oracle 10g database did not do backup, began to think very troublesome, did not expect the database recovery is quite smoothRecovery method:1, the original database file backup, (D:\ORACLE\PRODUCT\10.2.0\ORADATA\GQXT), rename it, I named Gqxt_old, (otherwise the database will be prompted when the SID already exists).2, re-install the database to the original path (do not install to the original path is OK, but th
Category of Hard Disk faults
Since the birth of computers, data recovery has gradually matured along with the development of computers. In today's information age, data recovery is even more important. Modern data recovery technology can solve data loss problems caused by multiple hard disk faults. To sum up, there are roughly three types of Hard Disk faults that
This article was reproduced from: http://blog.csdn.net/mu0206mu/article/details/7465439Android System Recovery Working principle use Update.zip upgrade process analysis (vi)---recovery service process details The recovery service is undoubtedly the most central part of the recovery startup model. It completes all the w
Tags: Full recovery incomplete recovery user management backup recovery based on time SCN and cancer recoveryCompare full and incomplete restores:A. Full recovery: Restores the database to its current state, including all committed data changes until the request is resumedSecond, incomplete
When using Microsoft Exchange Server 2003, you must note the differences between recovery and recovery. Restoration refers to the restoration of databases and log files to the server. Restoration refers to the replay of transaction logs to the recovered database.
There are two forms of recovery:
Soft Recovery refers t
When using Microsoft Exchange Server 2003, you must note the differences between recovery and recovery. Restoration refers to the restoration of databases and log files to the server. Restoration refers to the replay of transaction logs to the recovered database.There are two forms of recovery:Soft Recovery refers to the log replay process when the database is re
Instance recovery is used to recover from a crash failure or an instance in a parallel server environment fails, so instance recovery can refer either to crash recovery or to instance recovery in a parallel server environment (as long as one surviving instance can recover one or more failed instances).
The goal of ins
Do you want to know why the transaction log files are getting bigger? Transaction logs can sometimes be even larger than your actual database files, especially if you are applying a data warehouse. Why is this happening? How do I control its size? How does the database Recovery model control transaction log growth? In this series of articles, we will answer each of them.
Bulk Log Recovery Model
The bulk l
The batch log recovery mode of the SQL Server recovery model.
Do you want to know why the transaction log file is getting bigger and bigger? Transaction logs are sometimes larger than your actual database files, especially in the case of application data warehouses. Why is this happening? How to control its size? How does the database recovery model control the g
Oracle data recovery from the recovery type, cast aside the specific files, the total can be divided into two major types of recovery, one is full recovery, one is not full recovery. In fact, once you are familiar with the Oracle architecture, there is a general concept for
1, data Recovery software extundelete IntroductionAs an operational personnel, to ensure that the security of data is the fundamental responsibility, so in the maintenance of the system, to be cautious, but sometimes it will inevitably occur when the data is mistakenly deleted, at this time how to quickly and effectively recover data? In this section we will introduce several data recovery tools commonly us
The essential difference between crash/instance recovery and media recovery is:
Crash/instance recovery applies the redo log from the incremental checkpoint (incremental checkpoint) for the instance that needs to be recovered. Because the first condition of log coverage is to complete the logfile switch checkpoint of the relevant log, and the archive log is alway
Incomplete recovery is incomplete data recovery, incomplete recovery is the same in many ways as full recovery, they have the same basic set of commands, but some other commands are added without full recovery. There are many reasons for incomplete
RMAN recovery is divided into full recovery and Incomplete recovery. Full recovery, as its name implies, is to restore data based on full backup. However, in the real environment, such recovery is very useful.
RMAN recovery is div
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