When is it recommended to use transactions in systems to ensure data integrity?

Transactions are recommended to be used in systems where it is necessary to ensure data integrity and consistency when performing multiple related operations.

For example, if you need to make several changes to a database that must all be completed together or not at all (atomicity). This prevents a situation where some changes are saved while others are not, which could lead to an inconsistent state.

Typical use cases for transactions:

• Bank transfers, where debiting one account and crediting another must be atomic.
• Updating related tables in a database.
• Processing orders, where it is necessary to simultaneously update the inventory, order status, and payment.

Transactions ensure the properties of ACID (Atomicity, Consistency, Isolation, Durability), which are critical for data reliability.