答案解析
Which three are true about lock ownership and contention in an Oracle database server?
- A、transaction can wait on many row locks on rows from different tables at the same time
- B、A transaction can hold many table locks at the same time
- C、Using the DBMS_LOK package is more efficient than having the Oracle servers default locking occur
- D、A transaction can wait on many table locks at the same time
- E、A transaction can wait on many row locks on rows from the same table at the same time
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