The objective of concurrency control in a database system is to:

The objective of concurrency control in a database system primarily revolves around ensuring integrity when multiple processes or transactions attempt to access and update the same data concurrently. In a database environment where multiple users may read from or write to the database at the same time, it becomes essential to manage these interactions to prevent data anomalies.

Concurrency control mechanisms, such as locking, timestamp ordering, and multiversion concurrency control, are employed to establish rules that dictate how transactions can operate simultaneously, thereby preserving the logical consistency of the database. When two or more processes attempt to update the same data element at the same time without proper control, it could lead to issues like lost updates, dirty reads, or inconsistencies, which undermine the integrity of the database.

While restricting updates to authorized users, preventing data disclosure, and ensuring data accuracy and consistency are all critical facets of database management, they address different aspects of database security and integrity rather than specifically focusing on the challenges presented by concurrent transactions. Therefore, the aspect of ensuring integrity amid simultaneous updates by different processes fundamentally captures the essence of concurrency control in database systems.