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  1. When an instance is restored from a backup image, the database backup must be older than the disk backup. The reason for this is to avoid database references to non-existing data.
  2. Temporary files must be excluded from the backups. This is to avoid inconsistent or partial data. 

Info
titleTemporary Data

Temporary files can be identified by various identifiers that form the file names:

  • Temporary files – Prefixed with "TEMP."
  • DupUDR function temporary files – They are in a separate folder called "tmp". 
  • InterWorkFlow temporary files – Stored in a separate folder called "DR_TMP_DIR". 
  • Archiving function files – Stored in a separate folder called "pending". 


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This chapter includes the following sections:

7.1 Derby Database Backup and Restore

7.2 Oracle Database Online Backup and Restore

7.3 Oracle Database Online Backup and Restore in Amazon Web Services