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Backup | recovery | Hot BACKUP | data Use hot backup for time-sharing recovery ----How to recover incrementally from archiving to shorten data migration time Last Updated:monday, 2004-11-15 10:32 eygle A lot of times you may encounter a situation like this: The migration of a large database, but with little downtime, seems fraught with difficulty. But we can shorten the downtime by various means. This example applies to the same platform, th

Friends on the rise of the use of rm**, delete the Oracle data file after I help, I am helping friends to restore the database, encountered when recover, error can not find the number No. 28739 archive log, so I can not sync SCN, but also can not open the database. This is a typical case of an archived log discontinuity, and I finally told him to be prepared for it. It's not over yet, this real case has caused me to think that if the friend did not do

Tags: learn note set Redo es2017 establish HTTP action rule fixRecovery in Rman corresponds to two operations: Database repair (Restore) and database recovery (recover) Database repair (Restore): A data file that uses a backup set to replace a corrupted database file or restore it to a new location. When Rman is doing a repair operation, it uses the recovery directory (the control file for the target database without establishing a recovery directory)

With the "Subversion storm" caused by the blockchain, a large number of blockchain training institutions emerged. But in a mixed-up training circle, it is bucket to find a truly standard course system and a dedicated professional lecturer in the Blockchain field. Brother even education pointed out that it is time to make action to change and subvert the traditional training institutions operating thinking, and remind the public users, should be rational choice of blockchain training institutions

This is a creation in Article, where the information may have evolved or changed. In the golang of the wrong handling, I here is the summary of their own practice. 1. Log the error messages to the logs 2, panic, and then use the Recover function for exception capture. (I'm just doing a simple example to record this usage.) function A calls function B, where you can use recover in function A or in function B

() (err error) { err = errors.New("b内错误") return} func c() (err error) { err = errors.New("c内错误") return} func main() { err := a() if err != nil { fmt.Println(err) }} A function called the B and C functions, after the call to make err! = Nil judgment, if another D method, E method, that would not be very troublesome. In the actual development time, this multi-layer nesting also often exist, such as user registration function to judge a lot of things: the form validat

Partitioning after partitioning is not a common case of data recovery, it is important to note that after resizing the partition, the partition will not be rebuilt and the new partition cannot be reconstructed. Protect the data loss scene and recover the data to the fullest extent. The specific recovery method to see the text to understand.Tools/Software: AuroradatarecoveryStep 1: First Baidu search and download software opened, directly double-click

This is a created article in which the information may have evolved or changed. Usage of exception handling painc () and recover () in the Go language 1. Painc usage is: used to throw an error. The Recover () usage is: Write Recover () in defer, and call this defer before the place where panic can occur (let the code execute when the System Method field ends

In the process of computer use, the re-install system is a more common operation. Usually do not need to re-install the system often, but in order to improve system stability, clean up the system garbage, solve the problem of system crashes, and sometimes must be the computer to reload the system. Therefore, it is necessary to know how to recover the data after some reloading system and the computer reloading system.First we understand, after reloadin

Linux sometimes executes the RM-RF and other operations mistakenly deleted the file is absolutely a terrible thing, fortunately there are some solutions to temporary emergency. We are going to use a tool called Extundelete. Catalog [-] Rely on install find to recover drive name run Recovery restore single file restore a directory recover an entire partition Linux executing RM is not actually deleted, but in

Main Library Query minimum SCN information:Sql> Col CURRENT_SCN for 999999999999999Sql> SELECT CURRENT_SCN from V$database;Select min (FHSCN) from X$KCVFH;Select min (F.FHSCN) from X$kcvfh F, v$datafile Dwhere F.hxfil =d.file#and d.enabled! = ' READ only ';Current_scn----------------12614205226673MIN (FHSCN)----------------12614205076072 MIN (F.FHSCN)----------------12614205076072+++++++++++++++++++++++++++++++++++++++++++++++=1.----Library to cancel the archive applicationALTER database

Recover data: Restore deleted files in LinuxRecover data: Restore deleted files in LinuxGuideHave you ever encountered such a thing? When you find out, you have deleted the key or usedThe "rm" command mistakenly deletes an object that should not be deleted. In the first case, you can go to the garbage bin, search for the file, and restore it to the original location. But what should I do in the second case? You may know that the Linux Command Line doe

Many friends must have encountered the computer files were deleted, and emptied the Recycle Bin after the recovery and want to find the file distress. I have also encountered this situation, but fortunately I have the means to recover the deletion of the file (also found on the Internet). But the process is tortuous. Encounter this problem first everyone is Baidu and Google. I was no exception when I found a file method that could restore the Recycle

#,archived,status from V$log; group# sequence# Archived STATUS ---------- ---------- -------- ---------------- 1 1 NO Current 2 2 YES INACTIVE 3 3 YES INACTIVE 3. Found clear not successful Sql> ALTER DATABASE Clear unarchived logfile Group 1; ALTER DATABASE Clear unarchived logfile Group 1 * ERROR at line 1: Ora-01624:log 1 needed for crash recovery of thread 1 Ora-00312:online Log 1 Thread 1: ' D:\ORACLE\ORADATA\TEST\REDO01. LOG ' 4, copy valid database full backup, not fully restore the da

Through this script, you can see the information of the data file, find the log to recover the need, etc. COL file# FORMAT 999 COL STATUS FORMAT 999 COL ERROR FORMAT A10 COL tablespace_name FORMAT A10 COL datafile FORMAT A40 COL NAME FORMAT A30 Set PageSize 200 Set Linesize 180 Set Pause off Set Serveroutput on Set feedback on Set echo on Set Numformat 999999999999999 Column Today New_val DT Select To_char (sysdate, ' Yyyy-mm-dd-hh24-mi ') today from

using Log Explorer to view and recover data log Explorer4.1. Log viewing tool available for SQL Server2005: http://download.csdn.net/source/620271How to use: Open log ExplorerAttach Log File--Select SQL Server server and login method, Connectin database name, select DatabasesAttach-> Left dialog box browse-> View log->you can see that log records the words you want to restore: Right-click Log record Undo transation, select Save file name and path,then