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#, ' 999999999999999 ') "STOP_SCN" from V$datafile;file# SCN STOP_SCN---------- -------------------------------- --------------------------------1 11555102 11555103 11555104 11555106 1155510
Incremental backup based on SCN
The code is as follows
Copy Code
Rmangt; BACKUP incremental from SCN 1155510 DATABASE2gt; FORMAT '/u01/oracle/oradata/tmp/ora11_scn_%u ' tag ' Xifenfei ';Starting backup at 19-apr-12Using targe
slowly come.Memory structure, the memory structure mainly includes the PGA and SGA,PGA is for the client Access Time service, the SGA is the database operation service, these after the machine power down disappeared.There are also the main 6 process PMON,SMON,DBWR,LGWR,CHPT,ARCN, which are only available when the database is started.The bottom is stored in the persistent media files, have archived
uninstalled components, click Confirm and start deleting.
An error occurred in the removal process of ORACLE software, which appears to be a bug when removing software from the remote node, checking the $oracle_base/orainventory/log directory, finding the corresponding trace file, and discovering the following information:
info:running command '/tmp/orainstall2010-04-22_05-00-41pm/oui/bin/runinstaller-jreloc. /.. /jre-paramfile/tmp/orainstall2010-0
Audsid=userenv (' SessionID ');
end;
/you can also use related triggers by creating a database connection, such as: Limit only IP to be XXX the client uses PL/SQL connecting to a database2, the database should configure the logging function, record the user's operation to the databaseBy recording the operation log, the record needs to include user account number, operation time, operation content and opera
data when the database is running. The premise for performing hot backup is that the database runs in the archive log mode. It is applicable to key application systems that run 24x7 without interruption.
Advantage: the database can be opened during Backup. Hot Backup can be used for point recovery. The initialization parameter files and archive
the operating system utility or a third-party tool to back up all related database files.
Advantage: simple and quick backup. It can be restored easily and quickly. Simple execution.Disadvantage: the database must be closed and cannot be restored.
Hot BackupHot Backup is the process of backing up data when the database is running. The premise for performing
operating system utility or a third-party tool to back up all related database files.Advantage: simple and quick backup. It can be restored easily and quickly. Simple execution.Disadvantage: the database must be closed and cannot be restored.Hot BackupHot Backup is the process of backing up data when the database is running. The premise for performing hot backup
database, one by one.
The first thing to introduce is the database instance this block. This piece is made up of two big parts, one of which is the huge chunk of shared memory, which we call the SGA. The other is the Oracle background process.
The SGA is a very important concept. It is primarily a cache and buffer for Oracl
stage), you must first open the control file to read the data file and redo the log file information. If the control file is corrupted, the database cannot be opened, causing the user to have no access to the information stored in the database.During instance recovery, the control file checkpoint information determines how the Oracle instance uses the Redo log file to recover the
control and grid control for Oracle Enterprise Manager (Mesh controls)Database control is used to manage local databasesGrid control can be used to manage local and other databases2. In a database that already exists, you can also use DBCA to add Enterprise ManagerIn the DBCA Creation Wizard, select Configure the database
back up all related database files.
Advantage: simple and quick backup. It can be restored easily and quickly. Simple execution.Disadvantage: the database must be closed and cannot be restored.
Hot BackupHot Backup is the process of backing up data when the database is running. The premise for performing hot backup is that the
access the disk array.
2. Oracle Database Installation
First, shut down machine B and install the Oracle database on machine A. The installation path is disk D by default, and archive logs are placed on disk E. After the installation is complete, change the Startup
[01] Oracle Database introduction, 01oracle database Introduction
Oracle relational database: built on the relational model.
Oracle10g: g (grid) Grid technology. grid Computing connects a large number of computers through network sharing and integrates the redundant processi
generationMax_dumpfile_size: maximum size of the trace fileF. System Performance Optimization and dynamic statistical parametersSQL _trace: sets SQL tracing.Timed_statics: Set dynamic statisticsAudit_trail: starts the database Audit FunctionG. Other System ParametersControl_files: controls the file name and PathUndo_managment: Undo space management methodRollback_segments: the name of the rollback segment
Application Context. Oracle Database 10 Gb also introduces the column-related security policy implementation mechanism in the Virtual Private Database and the column masking mechanism that can be selected.
◆Oracle Label Security
Oracle
command to directly delete files 5. Clear other Files Although the data files, archive logs, online logs, temp files, parameter files are stored on the ASM disk, but the dump file, the alarm log is still located on the disk, need to manually clear the Echo $ORACLE _sid--Confirm the current Oracle_sid $ rm-rf $OR acle_base/admin/$
-installation, we use wenming_mm). Then we have to modify the file listener. ora. You can change the related items in it.You need to be patient and careful. There may be a small difference in one step that will lead to some strange error prompts. Sometimes you need to adopt strategies based on the error prompts. In short, the principle is, first, install an identical ORACLE with the same installation directory and
.
These tables and views are owned by SYS users and maintained by Oracle Server. Users can access these tables and views through select statements.
Content: physical and logical structure of the database. Object definition and space allocation. Integrity constraints. User. Role. Permission. Audit records
Views: the views in the data dictionary are read-only and c
Why cannot I enable ADG for Oracle 11g slave database?
Today, we have encountered a strange problem, but there is an essential cause and effect behind the strange phenomenon.During an Environment check in the afternoon, it was found that the standby database was in the mount stage. This was a 11gR2 database, and it was
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