Consider the following information about a university database: Professors have an SSN, a name, a rank, and a research specialty. Projects are identified by a project number, more than one sponsor name (e.g., NSF), a starting date, an ending date, and a budget. Graduate students have an SSN, a name, and a current degree program (e.g., M.S.or Ph.D.). Each project is managed by one professor, each project is worked on by one or more professors and each project is worked on by one or more graduate students. When graduate students work on a project, a professor must supervise their work on the project. Graduate students can work on multiple projects. Departments have a department number, a department name, and a main office. Departments have a professor (known as the chairman) who runs the department. Professor works in one or more departments and for each department that they work in, a time percentage is associated with their job. Design and draw an ER diagram that captures the information about the University. 60

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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.