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Made easy test series

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Consider an entity employee with attributes (EmpID, Empname, Deptname, Salary, mobno, Project ID, Designation) No two employee with same name and No two employee with same ID. An employee can have more than 1 mobileno and can work on one project only. A relation is designed satisfying the requirement of 2NF. The number of super keys there in the table containing attribute project ID are __________.

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