What is the transactional processing in AS ABAP ? Explain.

Transactions are processing units grouped to provide specific units. They have four principal characteristics. The initial letters of these characteristics together form the acronym ACID.

• Atomic
• Consistent
• Isolated
• Durable

Atomic means that a transaction is either fully successful or does not have any effects at all. If a transaction-oriented system goes down, you need to ensure that inconsistent, partial results are not stored.

Consistent means that the system status changes from one that is accurate and consistent in business terms to another that is also accurate and consistent in business terms.

Isolated means that the changes made within a transaction can only be seen by other transactions, even those that run simultaneously, after the final confirmation.

The results of a transaction are durable because after the final confirmation they are stored permanently in the database.
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