How to back up tables from oracle
Oracle table backup method
How to back up Oracle tables?
Oracle provides a variety of mechanisms to back up tables, including:
1. Use the EXPORT command
<code>EXPORT table_name TO filename.dmp</code>
2. Use the RMAN utility
<code>RMAN> BACKUP TABLE table_name;</code>
3. Using Oracle Data Pump
<code>expdp username/password TABLES=table_name DUMPFILE=filename.dmp</code>
4. Use third-party tools
There are many third-party tools available on the market to back up Oracle tables, for example:
- Oracle GoldenGate
- Toad for Oracle
- SQL Developer
How to choose the best method?
Choosing the best method depends on the backup requirements, here are the factors to consider:
- Recovery speed: Data Pump is usually faster than EXPORT or RMAN.
- Flexibility: RMAN provides the most options, such as incremental and parallel backups.
- Third-party tools: Third-party tools usually provide additional features and functionality.
Step description
Use the EXPORT command to back up the table:
- Connect to the Oracle database.
- Run the
EXPORTcommand to specify the table name and export file name.
Backup tables using the RMAN utility:
- Connect to RMAN.
- Run the
BACKUP TABLEcommand to specify the table name.
Backup tables using Oracle Data Pump:
- Connect to the Oracle database.
- Run the
expdpcommand to specify the user name, password, table name, and export file name.
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