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Mr. Dubey • 52.74K Points
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Q. If                        are not obtained in undo operation it will cause problem in undo- phase.

(A) higher-level lock
(B) lower-level lock
(C) read only lock
(D) read write
  • Correct Answer - Option(B)
  • Views: 591
  • Filed under category Database Management System (DBMS)
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