How to backup Oracle in PostgreSQL

How do I back up an Oracle database?

The Oracle BACKUP commands (RMAN & Data Pump) create physical or logical copies of your database or individual objects so they can be restored after failure.

Welcome to the Galaxy, Guardian!
You'll be receiving a confirmation email

Follow us on twitter :)

Oops! Something went wrong while submitting the form.

Description

Example H2

Example H3

Why back up Oracle databases regularly?

Backups protect against hardware failure, user error, and data corruption. A recent, validated backup lets you restore service quickly and meet RPO/RTO targets.

What Oracle backup methods exist?

Use RMAN for physical, block-level backups and Data Pump (expdp/impdp) for logical object-level dumps. Both can run online and integrate with archive logging.

How do I run a full RMAN backup?

Connect to RMAN as SYSDBA, place the database in ARCHIVELOG mode, and issue BACKUP DATABASE PLUS ARCHIVELOG; This captures datafiles and redo needed for PITR.

Step-by-step RMAN example

1. SQL> ALTER DATABASE ARCHIVELOG; 2. $ rman target / 3. RMAN> BACKUP DATABASE PLUS ARCHIVELOG FORMAT '/bkp/full_%d_%T.bkp';

How do I back up a single Orders table?

Run Data Pump export of just that table to keep the dump portable across versions.

expdp example

$ expdp system/****** tables=Orders directory=dp_dir dumpfile=orders.dmp logfile=orders.log

Which parameters matter most?

For RMAN use FORMAT, DEVICE TYPE, COMPRESSED. For Data Pump use PARALLEL, COMPRESSION, INCLUDE/EXCLUDE filters to shrink dump size and speed export.

Best practices for Oracle backups

Store backups off-site, validate with RMAN RESTORE … VALIDATE, rotate encryption keys, and automate using cron or Oracle Scheduler.

Common mistakes & fixes

Skipping archived logs — omit PLUS ARCHIVELOG and PITR fails. Always include them or run periodic ARCHIVELOG backups.

Not testing restores — backups untouched until disaster often contain errors. Schedule test RESTORE VALIDATE jobs monthly.

Why How to backup Oracle in PostgreSQL is important

How to backup Oracle in PostgreSQL Example Usage


--Export Customers & Orders tables for point-in-time replay
aexpdp system/password tables=Customers,Orders \
      directory=dp_dir dumpfile=cust_orders_20240115.dmp \
      logfile=cust_orders_20240115.log \
      compression=all parallel=4;

How to backup Oracle in PostgreSQL Syntax


--RMAN Full & Incremental
BACKUP [AS BACKUPSET | AS COPY]
      {DATABASE | DATAFILE 1,2 | TABLESPACE users}
      [PLUS ARCHIVELOG]
      [INCREMENTAL LEVEL 0|1]
      FORMAT '/bkp/%d_%s_%p.bkp'
      TAG 'ecommerce_full';

--Data Pump full export
expdp system/password schemas=ecommerce \
      directory=dp_dir dumpfile=ecom_full.dmp logfile=ecom_full.log;

--Data Pump single table export (Orders)
expdp system/password tables=Orders \
      directory=dp_dir dumpfile=orders.dmp logfile=orders.log;

Common Mistakes

Omitting PLUS ARCHIVELOG in RMAN. Without archived logs, you cannot perform point-in-time recovery. Always include PLUS ARCHIVELOG or run separate archived-log backups.
Failing to test restore operations. Backups may be corrupt or incomplete. Schedule regular RESTORE … VALIDATE or import tests on a non-production server.