Concurrency Control - Example of an Application using Optimistic Concurrency Control

Have you ever wondered how databases can ensure data consistency in a concurrent environment? Optimistic and pessimistic concurrency control are two fundamental approaches that tackle this challenge head-on. With optimistic concurrency control, the system assumes that conflicts between transactions are rare and allows them to proceed concurrently until they attempt to commit changes. On the other hand, pessimistic concurrency control takes a cautious approach by acquiring locks on resources before any operations can be performed. In this article, we will delve into the intricacies of these two concurrency control models, exploring their advantages and disadvantages while examining different implementation strategies.