Practice Dirty Read Problem (uncommitted Dependency) (9.4.2) - Transaction Management
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Dirty Read Problem (Uncommitted Dependency)

Practice - Dirty Read Problem (Uncommitted Dependency)

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is a dirty read?

💡 Hint: Think about the state of the data when it's read.

Question 2 Easy

Why is uncommitted data considered risky?

💡 Hint: Consider how data integrity is affected.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a dirty read?

A read of committed data
A read from a transaction that has not yet committed
An updated value permanently stored

💡 Hint: Think about when data is considered stable.

Question 2

True or False: A dirty read allows a transaction to see committed changes from another transaction.

True
False

💡 Hint: Consider the key definition.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a scenario where Transaction T1 reads a value from Transaction T2, which later rolls back its changes, discuss the impact on T1 and how it might lead to inconsistencies in the database.

💡 Hint: Think through the relationships between T1 and T2's data.

Challenge 2 Hard

Design a protocol to prevent dirty reads in a multi-user environment, providing justifications for your choices.

💡 Hint: Consider various isolation levels and their effects.

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Reference links

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