ACID rules

A transaction must be

  1. Atomic: - it is one unit of work and does not dependent on previous and following Transactions.
  2. Consistent: – data is either committed or roll back, no "in-between "case where something has been updated and something hasn't.
  3. Isolated: – no transaction sees the intermediate results of the current transaction.
  4. Durable: – the values persist if the data had been committed even if the system crashes right after.

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