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

mhmadesk
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2022-07-06
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Which lock should be obtained to prevent a concurrent transaction from executing a conflicting read, insert or delete operation on the same key value.

  1. Higher-level lock
  2. Lower-level lock
  3. Read only lock
  4. Read write
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mhmadesk
2022-07-06
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 (a).Higher-level lock

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