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Shadow paging has(a) no redo(b) no undo(c) redo but no undo(d) neither redo nor undoI got this question during an online exam.I want to ask this question from Lock Release and Undo Operations in section Recovery System of Database Management

Answer»

Right option is (a) no REDO

For EXPLANATION: UNDO erases all the CHANGES and redo MAKES the deleted changes.



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