Q. Which lock should be obtained to prevent a concurrent transaction from executing a conflicting read, insert or delete operation on the same key value.

  • (A) higher-level lock
  • (B) lower-level lock
  • (C) read only lock
  • (D) read write
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✅ Correct Answer: (A) higher-level lock

Published by Mr. Dubey ⭐ 104.82K Points at 16-Sep-2023 03:37 pm in Database Management System (DBMS)

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