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What is Undo and Redo in DBA?

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What is Undo and Redo in DBA?

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  1. What is Undo and Redo in DBA Opposite is where Oracle records how to reverse a deal (one or more DMLs in a transaction) Redo is where Oracle records how to replay a transaction

  2. Undo and Study Consistency

  3. Transactions

  4. Temp Undo

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