Description: Xact is an abbreviation for ‘transaction’, a fundamental term in the realm of databases. In this context, a transaction refers to a series of operations that are executed as a single unit of work. This means that all operations within a transaction must complete successfully for the changes to be applied to the database; otherwise, everything is rolled back, ensuring data integrity. Transaction management follows the ACID principles (Atomicity, Consistency, Isolation, and Durability), ensuring that transactions are reliable and secure. Transaction management allows developers and database administrators to handle multiple operations simultaneously without compromising data integrity. Additionally, many database systems implement Multiversion Concurrency Control (MVCC) mechanisms to enable transactions to execute efficiently, avoiding unnecessary locks and improving overall system performance. In summary, Xact is a key concept underlying how databases manage operations, ensuring they are performed safely and efficiently.