Oracle Practice Test - 31

Casual Mode - Take your time!

1 / 21
✓
Correct
0
✗
Incorrect
0
★
Score
0%
Multiple Choice

An Oracle System Change Number (SCN) _______.

  1. is a value that is incremented whenever a dirty read occurs
  2. is incremented whenever a deadlock occurs
  3. is a value that keeps track of explicit locks
  4. is a value that is incremented whenever database changes are made
Change Mode