Oracle Transaction Control Statements: Beginner-Level Quiz

A(n) ______ lock exists when concurrent transactions are granted Read access on the basis of a common lock.

A transaction can include multiple SQL statements. True or False?

The ______ statement is used to end a successful transaction.

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.

The ______ lock allows concurrent transactions to access the same row as long as they require the use of different fields within that row.

Although the ______ locking approach improves the availability of data, its management requires high overhead.

According to the ANSI SQL standard, when does a transaction begin?

Deadlocks are possible only when one of the transactions wants to obtain a(n) ______ lock on a data item.

In a ______ lock, the DBMS will lock an entire disk page.

______ ensures that once transaction changes are done, they cannot be undone or lost, even in the event of a system failure.

______ means that the data used during the execution of a transaction cannot be used by a second transaction until the first one is completed.

A ______ database state is one in which all data integrity constraints are satisfied.

Which of the following statements is not correct;

A transaction in Oracle ensures that either all of the command succeeds or none of the commands succeeds. True or False?

If a transaction is not explicitly committed or rolled back, the changes are saved automatically by Oracle. True or False?

All lock information is managed by a ______, which is responsible for assigning and policing the locks used by the transactions.

When the recovery procedure uses _____, the database is immediately updated by transaction operations during the transaction's execution, even before the transaction reaches its commit point.

What is the use of the ROLLBACK command in oracle?

The rule of transaction tells that either all the statements in the transaction should be executed (all are committed) successfully or none of those statements to be executed (i.e. all are canceled or rollbacked). Is this statement true?

The process of trimming sets of inter-related Operations into a single unit and executing those operations by applying the do everything or do-nothing principle is called transaction management in Oracle. True or False?