How to back up tables in Oracle database?

To back up tables in Oracle database, you can use one of the following methods:

1. To use the expdp command. expdp is a data pump tool provided by Oracle, which can be used to export tables and data to a binary file for backup purposes. For example, running the following command can back up a table named my_table:
2. Export data from the table “my_table” in the database “dbname” using the expdp utility and save it as “my_table.dmp”.
3. This will create a backup file named my_table.dmp in the current directory.
4. You can use the “exp” command, a traditional export tool provided by Oracle, to export a table and its data into a text file. For example, to backup a table named “my_table”, you can use the following command.
5. Export the tables from the database “dbname” using the username and password provided, and save them to a file named “my_table.exp”.
6. This will create a backup file named my_table.exp in the current directory.
7. To backup a table called my_table using the RMAN command, you need to create a backup set and add the table to it. The RMAN tool provided by Oracle can be used for backing up and restoring entire databases or specific tables.
8. RMAN> Make a copy backup of the table called my_table.
9. This will create a copy of the original table in the RMAN backup directory.

Regardless of the backup method used, it is important to regularly test and verify the integrity of backup files, and store the backup files in a secure location to prevent data loss.