Kas saaksite loetleda transaktsioonisüsteemi (ACID) nõudeid? Kus te oma töös kasutasite tehinguid?

The requirements for a transactional system are described by the ACID principles:

• Atomicity: The transaction is executed completely or not at all. If one part of the operation fails, all changes are rolled back.
• Consistency: After the transaction completes, the data remains in a correct state, satisfying all rules and constraints.
• Isolation: Parallel transactions do not affect each other, and the results of one transaction are not visible to another until it is completed.
• Durability: Once a transaction is committed, its changes are saved and not lost even in case of failures.

In my work, I used transactions when working with databases to ensure data integrity. For example, when placing an order in an online store, the transaction guaranteed that the deduction of the product from the stock and the creation of the order record occurred simultaneously — either both actions are performed, or none.