How to back up a table in oracle database

Three methods to back up a table in Oracle database: Oracle Data Pump (expdp), used to create a dump file of the table structure and data. SQL*Plus for exporting table data to SQL files. RMAN, used to create table-level backups for fast recovery.

How to back up a table in the Oracle database

Method 1: Use Oracle Data Pump ( expdp)

<code>expdp system/password directory=backup_dir dumpfile=table_dump.dmp tables=schema_name.table_name</code>

Among them:

• system/password is the Oracle system user and password.
• backup_dir The directory where backup files are stored.
• table_dump.dmp is the name of the backup file.
• schema_name is the name of the schema where the table is located.
• table_name is the name of the table to be backed up.

Method 2: Using SQL*Plus

<code>spool table_backup.sql
select * from schema_name.table_name;
spool off</code>

Where:

• ##table_backup.sql is The name of the backup file.
• schema_name is the name of the schema where the table is located.
• table_name is the name of the table to be backed up.

Method 3: Use RMAN

<code>rman target /
backup table schema_name.table_name;</code>

Where:

• target is the database to be backed up connection string.
• schema_name is the name of the schema where the table is located.
• table_name is the name of the table to be backed up.

Note:

Before performing the backup operation, make sure you are connected to the database to be backed up.
• Backup files should be stored in a secure location.
• Back up the database regularly to ensure data security.

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