Question - How do I backup my Oracle Database 10g?

Answered by: Lois Williams  |  Category: General  |  Last Updated: 27-06-2022  |  Views: 1306  |  Total Questions: 13

Overview of Database Backups. Backing Up An Oracle 10g Single Instance Database. Backing Up An Oracle 10g Single Instance Database. To make an efficient backup: Define the location of the snapshot control file. Configure the auto backup control file. Configure the archived redo logs. Configure the flash recovery area. Backing Up the Database On Windows: Click Start, point to Programs (or All Programs), point to Oracle Database 11g Express Edition, and then select Backup Database. On Linux with Gnome: In the Applications menu, point to Oracle Database 11g Express Edition, and then select Backup Database. Backup Procedures Offline backups. This type of backup is perhaps the easiest to perform as it involves simply copying database and log files to an offline storage area. Hot backups. This type of backup gives you a snapshot of your database. Incremental backups. This type of backup refreshes a previously performed backup. There are many different types of Oracle backups. First, you have logical and physical backups. Logical backups are taken with Oracle's export utilities. Physical backups are performed either hot or cold. Full Backups A full backup is an operating system backup of all datafiles and the control file that constitute an Oracle database. A full backup should also include the parameter file(s) associated with the database.

RMAN (Recovery Manager) Commands in Oracle. Remove Oracle schema from the recovery catalog. RMAN > DROP CATALOG; RESYNC CATALOG command. Perform a full resynchronization, which creates a snapshot control file and then copies any new or changed information from that snapshot control file to the recovery catalog.

How to Restore Oracle Database using RMAN (with Examples) Verify Backup Location. Step 1: Restore ControlFile from Backup. Step 2: Restore the Database. Step 3: Recover Database (and ResetLogs) Restore Specific Tablespace. Restore Specific Datafiles. Restore the Archived Redo Logs. Recover Specific Tablespace or Datafile.

RMAN and User-Managed Backups. There are two types of backups: image copies and backup sets. An image copy is an exact duplicate of a datafile, control file, or archived log.

Take a backup Launch SQL Server Management Studio (SSMS) and connect to your SQL Server instance. Expand the Databases node in Object Explorer. Right-click the database, hover over Tasks, and select Back up. Under Destination, confirm the path for your backup is correct. Select OK to take a backup of your database.

Go to Menu Tools => Database Export. Select your options for backup from there (export format, options, encoding, etc), then types, objects, and data, and voila!

RMAN (Recovery Manager) is a backup and recovery manager supplied for Oracle databases (from version 8) created by the Oracle Corporation. It provides database backup, restore, and recovery capabilities addressing high availability and disaster recovery concerns.

To take a full backup of the database with the archive logs, do the following: RMAN> BACKUP AS BACKUPSET DATABASE PLUS ARCHIVELOG; You can also take a backup of only a specific table space. The following example takes backup of only PRD01 tablespace.

You can use archive log backups to recover database transactions that have been lost due to an operating system or disk failure. Apply the archive logs to an online backup to recover a database. By default, full backups include both data and archive logs, but you can also perform separate archive log backups.

Terminating an RMAN Command The preferred method is to press CTRL+C (or the equivalent "attention" key combination for your system) in the RMAN interface. You can kill the server session corresponding to the RMAN channel by running the SQL ALTER SYSTEM KILL SESSION statement.

Why do you want to backup table using Toad, you can use export or datapump for this purpose. However, you can exprt a table from Toad too. Just click on 'Database' then select 'Import' and then click on 'Table Data'. This way you can backup your table.

RMAN uses a media manager API to work with backup hardware. A user can log in to Oracle RMAN and command it to back up a database. RMAN will then copy the files to the directory specified by the user. By default, RMAN creates backups on disk and generates backup sets rather than image copies.

ARCHIVELOG mode is a mode that you can put the database in for creating a backup of all transactions that have occurred in the database so that you can recover to any point in time. NOARCHIVELOG mode is basically the absence of ARCHIVELOG mode and has the disadvantage of not being able to recover to any point in time.

If you are using user managed cold backups, you can just shutdown and backup. With RMAN for consistent backup, database needs to be in mounted state as it can grab some essential information through backdoors. Apart from all these, RMAN reads information from Control file which is availabe only on MOUNT state.