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Given two transactions running concurrently, which ACID property prevents them from interfering with each other's intermediate states?

medium📝 Conceptual Q4 of 15
SQL - Transactions and Data Integrity
Given two transactions running concurrently, which ACID property prevents them from interfering with each other's intermediate states?
AAtomicity
BIsolation
CDurability
DConsistency
Step-by-Step Solution
Solution:

  1. Step 1: Understand Isolation

    Isolation ensures transactions do not see each other's partial changes during execution.

  2. Step 2: Compare with other properties

    Durability ensures permanence, Atomicity is all or nothing, Consistency ensures valid data states.

  3. Final Answer:

    Isolation -> Option B

  4. Quick Check:

    Isolation = A [OK]
Quick Trick: Isolation keeps transactions separate during execution [OK]
Common Mistakes:
  • Confusing isolation with atomicity
  • Thinking durability controls concurrency

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