exis recovery

10.1 Parallel Recovery (v7.1) The goal of parallel recovery is to reduce the time for crash recovery, single instance recovery, and media recovery with parallel mechanisms for computing and I/O. Recovery time can be effectively r

Note: If you are going to install Mac OS10.12 into the virtual machine to learn, then I strongly recommend that you do not install any other software gas, follow my blog to enter the recovery mode (Recovery), disable the rootless mechanism!!! After this, you can use Mac OS at will, otherwise you will eventually find that you have to go into recovery mode (

Today I had the honor to do a few Rman full database recovery experiment, here is a brief version, easy to forget when you can find the instantaneous speed A full recovery 1. Database entire Library "full recovery" $ rman Target/Login Rman tool, if the catalog is used, then the login method Rman Targetsys/oracle@lscatalogcata/cata@leo Rman> startup mount must

Today, when I used exp/imp for a small backup and recovery operation, I encountered a problem. Many empty tables cannot be expressed. I didn't understand it at the beginning, later, I went to the Oracle official website and read Oracle data. I sent Oracle11g R2 with a new feature. When exp and imp are used, no segment is allocated when the table has no data, to save space. This will prevent the empty table data from being expressed. I want to say some

Oracle table data recovery and oracle Data Recovery When you accidentally delete data in a table for table data recovery, you generally do not need to operate on the table any more. You can recover the data in the table as follows. Scenario: If data in table test is accidentally deleted, the following methods can be used to restore data in the table: Method 1:

First, use WinPE to make recovery CD 1, first on the development machine to adminstrator users run cmd, into the WES7 installation directory under the Petools folder, such as D:program fileswindows embedded Standard7toolspetools, Run the following command: Copype.cmd x86 c:winpe_x86 If the target machine is 64 bits, the middle argument "x86" is replaced with "AMD64", and the following path can be arbitrarily specified. 2, then, enter the path spec

1. As shown in the following image, we press the power button at the top of the phone to wait for the iphone screen to turn off when the computer is turned off. 2. After shutdown, we do not turn on the Apple iphone and the computer with the original data cable link up (Recommended reading: How the Apple phone to connect to the computer) 3. Now we need to press the operation Fast to the Apple mobile phone DFU recovery mode ①, in the shutdown sta

Tags: multiple user mode database alter modify DISTINCT ACK loss comparisonOriginal: SQL Server Backup and Recovery series backup and restore under three simple recovery modelsI. OverviewIn front of some theoretical knowledge of backup, this article starts with backup and restore under the simple recovery model. In the simple mode is not a log backup, after a dis

This one-key restore operation normally only restores the C disk, but in order to prevent an accident, other disks if there is important data, you also back up good, so as not to cause your personal important data loss. For your data security, back up the overall critical data before you operate, and copy the files that are important to you to another computer or to your mobile storage device. There are two ways to enter a key recovery interface: 1.

SCN-based restoration. Article 2 1. view the current SCN for later data loss to restore: SQLgt; selectcurrent_scnfromv $ database; CUR SCN-based recovery. Article 2 1. view the current SCN for later data loss to restore: SQLgt; select current_scn from v $ database; CUR SCN-based recovery, article 2 1. Check the current SCN to facilitate data loss in the future for restoration: SQL> select current_scn

RMAN recovery case -- Case of full recovery error (ControlFileError) RMAN recovery case: the user encounters the following error during rman recovery: RMANrestoredatabasefromtagTAG20140923T160003; Start RMAN recovery case -- Case of full

SCN-based recovery, article 2 1. Check the current SCN to facilitate data loss in the future for restoration: SQL> select current_scn from v $ database; CURRENT_SCN ----------- 1511297 SQL> select file #, checkpoint_change # from v $ datafile; FILE # CHECKPOINT_CHANGE # ---------------------------- 1 1510535 2 1510535 3 1510535 4 1510535 5 1510535 6 1510535 7 1510535 7 rows selected. SQL> col name format a45 SQL gt; set line 300 SQL> select nam

What do you mean, recovery? Recovery translation is "recovery" means that after the boot through a special key combination (various manufacturers vary the model) can enter a system (engineering mode), in this interface you can directly with the SD card ZIP ROM upgrade or backup your system, The older version of the recovery