Question

However, a transaction can go to the ___ state if one of the checks fails or if the transaction is aborted during its active state. The transaction may then have to be rolled back to undo the effect of its WRITE operations on the database.

Answer 1

If a database transaction fails or is aborted, it enters the abort state and a rollback is performed to undo its WRITE operations. This ensures the database maintains data integrity by reverting changes from incomplete transactions.

Step-by-step explanation:

However, a transaction can go to the abort state if one of the checks fails or if the transaction is aborted during its active state. The transaction may then have to be rolled back to undo the effect of its WRITE operations on the database.

When a transaction in a database system does not complete successfully, it enters a phase known as the abort state. At this point, a process called a rollback is initiated to reverse any changes that the transaction might have made. This is a critical safety feature in database management systems (DBMS) because it helps maintain data integrity by ensuring that only fully completed transactions have a permanent effect on the database.

Rollbacks are part of the broader concept of transaction management in DBMS, which also includes the steps of commit, where changes are permanently applied, and the potential for a transaction to enter other states, such as active, partially committed, and failed, based on various conditions.