The situation where the lock waits only for a specified amount of time for another lock to be released is

Related MCQs

• A(n) ____ lock exists when concurrent transactions are granted Read access on the basis of a common lock.
• In a ____ lock, the DBMS will lock an entire disk page.
• Assume transaction A holds a shared lock R. If transaction B also requests for a shared lock on R.
• Once the lower-level lock is released, the operation cannot be undone by using the old values of updated data items, and must instead be undone by executing a compensating operation; such an operation is called
• A lock that prevents the use of any tables in the database from one transaction while another transaction is being processed is called a
• Deadlocks are possible only when one of the transactions wants to obtain a(n) ____ lock on a data item.
• A lock that allows concurrent transactions to access different rows of the same table is known as a
• A lock that allows concurrent transactions to access different rows of the same table is known as a
• In concurrency control policy the lock is obtained on
• A lock that allows concurrent transactions to access different rows of the same table is known as a