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Concurrency Control (Concurrency problems (The Lost Update Problem…

- - - - Hardware such as a UPS or backup generator to allow records to write before shutdown
  - - - Multiple operations at the same time may lead to incorrect order
  - - - Prevents corruption of data
      - One transfer may occur an incorrect number of times
  - - - Any operation cannot be viewed in an intermediate state
        
        Query
        
        Other simultaneous transaction