overwritten data recovery

Common data file backup and recovery common data file backup and recovery: Common Data Files refer to non-system tablespace, udo tablespace, temporary tablespace, read-only tablespace files. Common data files can be restored using

1. When are MySQL data sheets susceptible to damage? A sudden power outage in the server caused data file corruption. force shutdown, without first shutting down the MySQL service and so on. 2. What is the main phenomenon after the data sheet is damaged? when you select data from a table, you get the following error: I

This article mainly introduces how to correctly improve the efficiency of DB2 data backup and recovery, including understanding the logical storage structure of data and rational planning of tablespaces to improve database backup and recovery performance, as well as the alternative processing methods for LOB

uninstall 11g, instead 10g continue above the operation.10g installation is complete, Oradata will be overwritten, continue to execute in the sqlplus of CMD. shutdown immediate, start Nomount,ALTER DATABASE Mount no problem,ALTER DATABASE open ... Again the error ... I went, unexpectedly reported that the DBF file is 11g instead of 10g! The original DBF was 11g so that a mess was defiled Ah! It's so shy! Re-copy the 10g Oradata folder, continue to op

Data Recovery after data is accidentally deleted in Oracle and committed Background: Table A is deleted due to data misoperations. -- 1. Back up the current data of Table A first. -- 2. query the SCN number before a certain time point Select max (Scn) FROM Sys. Smon_Scn_

Tags: Use Data Io management time re1. Parameters for automatic management of Oracle restored data:1. Some programs before Oracle 9i contain statements that manually specify rollback segments. This statement does not affect the final result, but reports an error on the console. Therefore, dynamic parameters are introduced.Undo_suppress_errors: manually specifying or setting a restore segment in the mode of

The latest version of IKE file data recovery software, support for local disk, mobile hard disk, U disk, SD card, TF card, Sony Memory stick and other storage devices on the recovery of files, including pictures, files, video and other file format recovery, scanning speed, safe and reliable, the biggest feature is WYSI

A thorough set of deletions containing data files and content is emitted, and if used manually, DBAs will be extremely cautious in spelling such commands: Wed May 02 10:46:09 2012/* Oracleoem */DROP tablespace "Wndt" including CONTENTS and Datafiles CASCADE CONSTRAINTSWed May 02 10:46:23 2012Errors in file d:oracleadminwndtudumpwndt_ora_4816.trc:ORA-01259: Cannot delete data file D:oracleoradatawndtwndt. O

completes, the list of deleted files and directories is generated in the catalog diagram and the contents of the catalog. When the directory scan is complete, seven items appear in the left area of the window, and the directory and file information is displayed in the right window (Figure 5). The meanings of these seven items are as follows: Figure 5 1, "root directory": normal root directory 2, "deleted directory": A collection of directories removed from the root directory (av

These days, a number of customer database repair cases, spare time, write and write the repair process!Cause: The customer restores the website program, the first time restore because the SQL Server did not stop, so the error, the customer simply shut down the SQL Server for a second operation, the operation was completed only suddenly found that the database was the same name of a database of 2M was overwritten.Processing: After receiving the disk through the top-level SQL Server Software Scan,

Backup and recovery of spatial data in ArcSDE: With the increasing requirements of GIS application systems in terms of complexity, integration, and concurrency, the amount of space data required by the system is rapidly increasing. At the same time, users' demands for concurrent access to spatial data are becoming in

The two problems are: whether the backup and recovery policies are secure, that is, whether the database can be backed up in a timely and accurate manner. The second is to consider the high efficiency of the DB2 data backup and recovery solution. If it takes several hours to back up or recover a DB2 database, the backup and r