SQL transactions are a fundamental concept that ensures multiple operations execute safely and reliably as a single unit. This quiz on SQL transactions covers the basics of transactions, their properties, behavior, and importance in database operations.
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Which property ensures that either all operations in a transaction are executed or none?
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Question 3 of 15
3. Question
What command is used to make changes in a transaction permanent?
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Question 4 of 15
4. Question
What command is used to undo changes in a transaction?
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Question 5 of 15
5. Question
Which command begins a new transaction explicitly in SQL?
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Question 6 of 15
6. Question
What is the default behavior of most SQL databases regarding transactions?
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Question 7 of 15
7. Question
Which of the following is NOT a characteristic of a transaction?
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Question 8 of 15
8. Question
When is a transaction considered complete?
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Question 9 of 15
9. Question
Which ACID property ensures that one transaction’s intermediate results are not visible to others?
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Question 10 of 15
10. Question
What happens if a transaction fails before COMMIT?
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Question 11 of 15
11. Question
Which statement is TRUE about nested transactions?
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Question 12 of 15
12. Question
Why are transactions important in banking systems?
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Question 13 of 15
13. Question
Which SQL command marks a logical rollback point within a transaction?
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Question 14 of 15
14. Question
What is true about transaction logs?
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Question 15 of 15
15. Question
What type of SQL operations should be grouped into a transaction?
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Summary
Mastering transaction basics in SQL helps maintain data consistency, integrity, and error recovery. These MCQs test your understanding of how transactions begin, commit, roll back, and interact with ACID properties.
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