is used to minimize unnecessary redos during recovery.

Related MCQs

• During recovery from a failure
• For correct behaviour during recovery, undo and redo operation must be
• A major goal of the database system is to minimize the number of block transfers between the disk and memory. This is achieved by
• Which are types of recovery control techniques:
• Which of the following are introduced to reduce the overheads caused by the log- based recovery?
• The recovery scheme must also provide
•          means that the data used during the execution of a transaction cannot be used by a second transaction until the first one is completed.
•                means that data used during the execution of a transaction cannot be used by a second transaction until the first one is completed.
• ____ means that the data used during the execution of a transaction cannot be used by a second transaction until the first one is completed.
• In case of any shut down during transaction before commit which of the following statement is done automatically?