Transaction management and concurrency

The document explains the concept of transactions in databases, detailing the operations involved, their properties (atomicity, consistency, isolation, durability), and the various states a transaction can be in (active, partially committed, committed, failed, aborted, terminated). It emphasizes the importance of ensuring database consistency and the role of commit and rollback operations in managing transactions. Transaction examples illustrate how operations affect account balances and the repercussions of transaction failure.