Which three are true about lock ownership and contention in an Oracle database server?

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  • A、transaction can hold many table locks at the same time.
  • B、A transaction can hold many row locks on rows in the same table at the same time.
  • C、A transaction can wait on many row locks on rows from the same table at the same time
  • D、sing the s Loc package is more efficent th having the race servers default ocking occur
  • E、A transaction can wait on many row locks on rows from different tables at the same time
  • F、A transaction can wait on many table locks at the same time
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