A schedule S of n transactions is serializable if it is equivalent to some

Related MCQs

• 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.
•                      are used to ensure that transactions access each data item in order of the transactions’          if their accesses conflict.
• 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
• All transactions are controlled and executed by the DBMS (subject to some limitations) to guarantee database ____.
• 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
• In order to maintain the consistency during transactions, database provides
• Which of the following is used to get back all the transactions back after rollback?