Consistent vs. inconsistent backup

What are consistent and inconsistent backups?

What are consistent and inconsistent backups?

A consistent backup is one where the database has been shut down. This is also called a cold backup. The database is guaranteed to be in a consistent state because no one can possibly be using the database; it is down. An inconsistent backup is taken when the database is up and running. This is also called a hot backup. While the backup is being performed, the database can still undergo change. A datafile in your backup can have old transactions and new transactions. This means the datafile is not consistent with a single point in time. Oracle needs to use special mechanisms to handle this inconsistency. One mechanism Oracle uses is the archived redo logs so that transactions can be replayed during recovery.

Dig Deeper on Oracle database administration

Data Management
Business Analytics
SearchSAP
TheServerSide.com
  • Why WebAssembly? Top 11 Wasm benefits

    Latency and lag time plague web applications that run JavaScript in the browser. Here are 11 reasons why WebAssembly has the ...

  • Why Java in 2023?

    Has there ever been a better time to be a Java programmer? From new Spring releases to active JUGs, the Java platform is ...

  • How developers can avoid remote work scams

    Software developers can find good remote programming jobs, but some job offers are too good to be true. Follow these tips to spot...

Data Center
Content Management
HRSoftware
Close