Using SQL Query: 1. Find the d_ids of Dealers who sell some Black Car and some Yellow Car 2. Find the d_ids of Dealers who sell every Black Car 3. Find the d_id of Dealers who sell used Cars that are Black The Database Schema is as follows:   Cars c_id number c_brand string color string c_condition string Dealers d_id number d_name string d_location string Inventory c_id number d_id number costpercar number instock number

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Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.