Both relational and multidimensional databases provide information needed to support management decision making. Which one would you query first as you pull together information to support a semi-structured decision. Why?

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A: Dear learner, hope you are doing well, I will try my best to answer this question. Thank You!!

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Concurrency Control

The simultaneous occurrence of two or more operations is called concurrence and the situation is called concurrency. In concurrency, the function of one operation can affect the function of the other and put data integrity at risk. Hence, management for the control of concurrency is required. The management or controlling system in the Database Management System (DBMS) that coordinates concurrent access is called the concurrency control system.