Why is it important to separate transactions to ensure data integrity?

Transaction separation is important for ensuring data integrity because a transaction is a unit of work with the database that must be completed entirely or not at all (atomicity).

If transactions are not separated:

• Errors in one operation can affect others, leading to inconsistent data.
• It is difficult to rollback changes if part of the operations succeeded and part did not.

Separating transactions allows:

• Localizing errors and rolling back only the affected part.
• Ensuring operation isolation so that parallel changes do not conflict.
• Maintaining a consistent data state even in case of failures.

For example, when transferring money between accounts, it is important that the debit and credit are in one transaction. If these operations are separated, it can result in a situation where money is debited but not credited, which violates data integrity.