Rollback of transactions is normally used to:

Related MCQs

• Which of the following is used to get back all the transactions back after rollback?
•                      rollback requires the system to maintain additional information about the state of all the running transactions.
• A special redo-only log record < Ti, Xj, V1> is written to the log, where V1 is the value being restored to data item Xj during the rollback. These log records are sometimes called
•                      are used to ensure that transactions access each data item in order of the transactions’          if their accesses conflict.
• A concurrency-control policy such as this one leads to              performance since it forces transactions to wait for preceding transactions to finish before they can start.
• Each of a pair of transactions has read data that is written by the other, but there is no data written by both transactions, is referred to as
• What is ACID properties of Transactions?
• A lock that allows concurrent transactions to access different rows of the same table is known as a
• What is ACID properties of Transactions?
• A lock that allows concurrent transactions to access different rows of the same table is known as a