If a transaction does not modify the database until it has committed, it is said to use the                        technique.

Related MCQs

• If an transaction is performed in a database and committed, the changes are taken to the previous state of transaction by
• If several concurrent transactions are executed over the same data set and the second transaction updates the database before the first transaction is finished, the ____ property is violated and the database is no longer consistent.
• Database __________ which is the logical design of the database, and the database _______ which is a snapshot of the data in the database at a given instant in time.
• Database __________ , which is the logical design of the database, and the database _______,which is a snapshot of the data in the database at a given instant in time.
• Which one of the following provides the ability to query information from the database and to insert tuples into, delete tuples from, and modify tuples in the database?
• A lock that prevents the use of any tables in the database from one transaction while another transaction is being processed is called a
•          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.
• If the complete execution of the transaction(s) takes the database from one consistent state to the other then that property of transaction is called: