How to backup an Oracle database table?

1 year ago
Jackson Davis
2 minutes

There are several methods to back up Oracle database tables.

  1. Export data using Oracle Data Pump: Use the expdp command to export table data and structure. For example, export a table named “employees” using the following command:
  2. Export data pump is used to create a backup of the employees table using the specified directory and file names. The export process will be logged in the export.log file.
  3. This will create a backup file in the specified directory.
  4. Utilizing Oracle Export/Import tools: Backup and restore tables using the exp and imp commands. For example, using the following command to backup a table named “employees”:
  5. Export the data from the “employees” table using the username and password specified, and save it to a file called “backup.dmp”. A log of the export will be saved to a file called “export.log”.
  6. This will create a backup file in the current directory.
  7. Using Oracle SQL Developer: With Oracle SQL Developer tool, you can export data as a SQL script. Right-click on the table, select “Export”, and then choose “SQL Script” as the export format. This will generate a SQL script file containing both table structure and data.
  8. Plugins or third-party tools: There are various plugins and third-party tools available for backing up and restoring Oracle database tables. For instance, you can use RMAN (Recovery Manager) to back up tables.

It is advisable to save backup files in different locations regardless of the method chosen to prevent data loss. The frequency of backups should be determined based on the importance of the database and the extent of data changes.

bannerAds