Question 6 The symbol → indicates functional dependency in the context of a relational database. Which of the following options is/are TRUE? A (X,Y)→ (Z,W) implies […]
Question 1 Consider a relational table with a single record for each registered student with the following attributes. 1. Registration_Num: Unique registration number of each registered […]
Question 15 Which of the following relational query languages have the same expressive power? 1. Relational algebra 2. Tuple relational calculus restricted to safe expressions 3. […]
Question 9 A university placement center maintains a relational database of companies that interview students on campus and make job offers to those successful in the […]