Oracle Transaction Control Statements: Beginner-Level Quiz

Oracle Transaction Control Statements Quiz

Welcome to the "Transaction Control Statements" quiz! This quiz is designed to assess your understanding of essential concepts related to managing transactions in Oracle Database. You’ll explore key statements such as COMMIT, ROLLBACK, and SAVEPOINT, and learn how they help maintain data integrity and control changes. Whether you're preparing for an interview or looking to solidify your knowledge, this quiz will challenge your grasp of transaction management. Let’s get started!

1 / 20

Once we execute the commit statement, we cannot revert back the changes. True or False?

True

False

2 / 20

What is the use of the ROLLBACK command in oracle?

It is used for dividing or breaking a transaction into multiple units so that the user has a chance of rolling back a transaction up to a point or location.

It is used in controlling the boundaries of a transaction.

It is used to undo the transactions that have not already been saved permanently to the database and get back to the initial state from where the transaction was started.

It is used for inserting / updating / deleting data to/from a table then we are performing a transaction on a table.

3 / 20

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

Table-level

Row-level

Database-level

Page-level

4 / 20

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

Secure

Fixed

Consistent

Complete

5 / 20

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

Field-level

Binary

Exclusive

Shared

6 / 20

A DBMS uses a transaction ______ to keep track of all transactions that update the database

Statement

Log

Table

Block

7 / 20

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

True

False

8 / 20

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

DBMS

Locking agent

Scheduler

Lock manager

9 / 20

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.

Isolation

Atomicity

Consistency

Durability

10 / 20

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.

Unbuffered

Deferred write

Immediate write

Write-through

11 / 20

When a program is abnormally terminated, the equivalent of a ______ command occurs.

COMMIT

ROLLBACK

EXIT

QUIT

12 / 20

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?

Yes

I have no idea

Probably

13 / 20

The three basic techniques to control deadlocks are: deadlock ______, deadlock detection, and deadlock avoidance.

Commits

Prevention

Rollback

Prohibition

14 / 20

Which statement allows you to create a marker to which you can later roll back?

COMMIT

ROLLBACK

SAVEPOINT

BEGIN

15 / 20

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

Table-level

Database-level

Row-level

Page-level

16 / 20

The Oracle RDBMS uses the ______ statement to declare a new transaction start and its properties.

BEGIN TRANSACTION

COMMIT

BEGIN

SET TRANSACTION

17 / 20

Which of the following statements is not correct;

COMMIT indicates that the transaction was completed successfully and all the DML performed since the start of the transaction are committed to the database as well as frees the resources held by the transaction.

SET TRANSACTION indicates that the transaction is started and is optional.

TRIGGER is used for dividing or breaking a transaction into multiple units so that the user has a chance of rolling back a transaction up to a point or location.

ROLLBACK will roll back the data to its previous state.

18 / 20

If we are inserting / updating / deleting data to/from a table then we are performing a transaction on a table. True or False?

True

False

19 / 20

The ______ statement is used to end a successful transaction.

DONE

COMMIT

END

QUIT

20 / 20

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

True

False

Your score is

The average score is 0%

Oracle transaction control statements focus on managing database transactions to ensure data integrity and consistency.

Key commands to be explored include COMMIT, ROLLBACK, and SAVEPOINT, which allow users to save, undo, or manage changes within a transaction.

This quiz is designed to test your understanding of effectively controlling data modifications in Oracle databases.

Best of luck!