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Restore accidentally deleted oracle data files
Recovery Method for accidental deletion of oracle data files on the Linux platform simulates misoperations: the database is running normally and data files are directly rm. -- 1. test Environment: $ cat/etc/redhat-releaseCentOS release 6.5 (Final) select file_name from dba
I feel that myeclipse is really powerful. I have to write this function, or I am sorry for the author of myeclipse.
1. Restore class files
During Development a few days ago, I accidentally wrote 1000 linesCodeThe class is deleted, and the instinct is to press Ctrl + Z to restore, but it is useless, but there is still a solution to the search, it is a bit difficult to re-write it again
Unwilling, haha fin
In Linux, the/etc/fstab file is a disk mount problem, if the file is accidentally modified, or deleted, it will cause the system cannot be restarted. Because the/etc/fstab file is a record of the disk mount information, if there is a problem with the file, then the corresponding home directory (/) and (/boot) and swap disks will not be mounted, so this file is very important for the Linux system.I made the mistake is: I in the Hadoop cluster file conf
you want to install, easy to find. After the selection is completed, click Install
Installation complete, click "Finish" to open the software.
Software main interface as shown above, this software is charging software, not registered words have use time limit.
Two function Introduction1. Delete recoveryThis feature allows you to quickly recover a file that was mistakenly deleted on a disk, which is
Because the staff turnover is not pleasant, the system engineer after leaving, because the company did not close its VPN in time, the database server (Linux 6.5 Oracle 11.2.0.1) account is not modified, and finally directly up to RM oracle_base to kill, The tragedy is that the Oradata catalogue is also inside, and it is even more tragic that all the data files are in it. That is, the database was completely delete
-recursiveMaking all in SRCMaking install in SRC/usr/bin/install-c ' extundelete '/usr/local/bin/extundelete 'Restore Operation command--umount or Read only partitionUmount/dev/partitionMount-o remount,ro/dev/partition
--Recover filesXtundelete/dev/partition--restore-allExtundelete/dev/partition--restore-directory/backup/gnutool-deleteExtundelete/dev/partition--restore-files/etc/passwdTest recovery--Based
We believe that a lot of friends and I like the use of 360 security guards, small knitting in the use of 360 guards delete files often mistakenly deleted many things, but some things are important, must be retrieved, how to do? The following is a number of ways to find the three, I hope to be useful!
I. Tools and Methods
Use of the 360 security guards in the 360 system first aid box to
UnrmHttp://packetstormsecurity.com/UNIX/utilities/unrm-0.92.tar.gzA small tool actually uses the debugfs command in Linux, which simplifies the steps for manual use of debugfs,There is no interactive interface, and the recovered files are directly placed under a fixed directory.
According to this situation, the tools that are bulky and need to be installed are out of the Selection Range. I used unrmWithout damaging the data disk content, I put this t
------ 1 oracle dba 64 May 14 8->/u01/app/oracle/admin/bdump/alert_prod.logLrwx ------ 1 oracle dba 64 May 14 9->/u01/app/oracle/product/10.2.0/db_1/dbs/lkinstprod (deleted)[Oracle @ prod fd] $
We can clearly see the words/u01/app/oracle/oradata/prod/disk2/users01.dbf (deleted), indicating that the file has been deleted.5. Restore
Run the cp command to copy the
Application Environment: A table is accidentally deleted. At this time, I cannot restore the entire database, which is too troublesome. So now I will copy the data file from the new database to restore it. Therefore, Oracle cannot only restore a part of the data file when restoring the file, because oracle must ensure that the data file
Application Environment: A table is accidentally deleted. At this time,
Tags: inux err Linux data recovery spro file src E30 recycle ext3In the operation of Linux system operations, often encountered due to careless operations, operation errors and other causes of file data loss situation. What is referred to here is a complete deletion, that is, the "Recycle Bin" can not be recovered, such as the use of "RM-RF" to delete data. For the Ext file system under Linux, the available recovery tools are debugfs,ext3grep,extundelete and so on, among which the Extundelete to
This we open the http://www.kuaipan.cn/in the computer, use your network disk username password to login on the webpage
As shown below we clicked Login, login here because the phone client did not recover the file function, so must go to the website
After landing Jinshan fast disk, to reach the home of Jinshan Fast, click on the top right of the Recycle Bin button, as shown
Click the Recycle Bin flag, since the Recycle Bin is defin
MyEclipse deleted files and code
[restoration of false deletion of documents]
Today in writing code, accidentally deleted a package, and then all the files under this package are gone, I believe many people have similar experience,
Luckily MyEclipse provides us with a very useful function:
Select the item-> Restore
In order to reduce the loss to a minimum, Linux mistakenly deletes the file to do the following:One: Unmount or mount the partition that needs to be resumed in a read-only manner;EXAMPLE:UMOUNT/DEV/SDB1 #卸载挂载的sdb1Two: Install Extundelete (need Epel source for support)Example:yum-y Install ExtundeleteThree: View the inode for the file in the SDB1 partitionEXAMPLE:EXTUNDELETE/DEV/SDB1--inode 2650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M01/79/EB/wKioL1ad_Fbh6E97AAAoX1EsIIs824.png "title
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