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

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

Isolation

Atomicity

Consistency

Durability

2 / 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

3 / 20

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

Page-level

Table-level

Field-level

Row-level

4 / 20

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

True

False

5 / 20

All transactions are controlled and executed by the DBMS (subject to some limitations) to guarantee database _____.

Design

Consistency

Uniqueness

Integrity

6 / 20

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

Table-level

Row-level

Database-level

Page-level

7 / 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.

8 / 20

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

Secure

Fixed

Consistent

Complete

9 / 20

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

COMMIT

ROLLBACK

SAVEPOINT

BEGIN

10 / 20

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

Complete

Exclusive

Binary

Shared

11 / 20

The ______ statement is used to end a successful transaction.

DONE

COMMIT

END

QUIT

12 / 20

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?

True

False

13 / 20

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

True

False

14 / 20

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

COMMIT

ROLLBACK

EXIT

QUIT

15 / 20

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

Statement

Log

Table

Block

16 / 20

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

Isolation

Consistency

Atomicity

Durability

17 / 20

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

Table-level

Database-level

Row-level

Page-level

18 / 20

What is the default behavior of Oracle in the absence of a COMMIT or ROLLBACK?

Changes are automatically rolled back

Changes are automatically saved

An error is raised

Changes remain in a pending state

19 / 20

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

True

False

20 / 20

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

When the first SQL statement is encountered

With the BEGIN TRANSACTION command

With use of the START command

With the BEGIN command

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!