In Pessimistic locking when
user wants to update data it locks the record and till then no one can update
data. Other user’s can only view the data when there is pessimistic locking
In Optimistic locking multiple users can open the same record for updating, thus increase maximum concurrency. Record is only locked when updating the record
In Optimistic locking multiple users can open the same record for updating, thus increase maximum concurrency. Record is only locked when updating the record