In modern day’s concurrency computing systems are discussed in two-fold areas, first, distributed system; concurrency is caused by the fact that the individual components are active. They evolve independently, and sometimes they communicate with each other in order to synchronize or to exchange data. Second, View all object-oriented systems as inherently concurrent, since objects themselves are “naturally concurrent” entities. In reality, concurrency adds a new dimension to system structure and design. Concurrent systems are extremely difficult to understand, design, analyze and modify. Transaction processing, concurrency control and recovery issues have played a major role in conventional databases, and hence have been an important area of research for many decades. However, with the increasing use of advanced database applications such as CAD/CAM, large software design projects, object-oriented databases both in centralized and distributed environments, there is a vital need for better algorithms for handling the new applications more efficiently. In this paper, we present a study on the concurrency control and transaction controls. We have discussed the work process in the area of transaction modeling, its applications in object-oriented and databases.