SQL - Transactions and Data Integrity
Which ACID property guarantees that a transaction's operations are all applied together or not applied at all, preventing partial updates?
Which ACID property guarantees that a transaction's operations are all applied together or not applied at all, preventing partial updates?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the property definitions
Atomicity means all parts of a transaction succeed or none do; Consistency ensures data rules are met; Isolation prevents interference; Durability guarantees permanence.Step 2: Identify the property preventing partial updates
Atomicity ensures that either all changes happen or none, so no partial updates occur.Final Answer:
Atomicity -> Option AQuick Check:
Partial updates prevented by Atomicity [OK]
Quick Trick: All or nothing means Atomicity [OK]
Common Mistakes:
- Confusing Consistency with Atomicity
- Thinking Isolation prevents partial updates
- Assuming Durability relates to transaction completeness
Master "Transactions and Data Integrity" in SQL
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