Question: (Database Desgin: Relational calculus) Express query (a) below in tuple relational calculus. Use the database schemaprovide here. a. Retrieve the names of departments that control

(Database Desgin: Relational calculus)

Express query (a) below in tuple relational calculus. Use the database schemaprovide here.

a. Retrieve the names of departments that control all projects listed in the Project table.

(Database Desgin: Relational calculus) Express query (a) below in tuple relational calculus.

Figure 5.7 Referential integrity constraints displayed on the COMPANY relational database schema. EMPLOYEE Fname Minit Lname Ssn Bdate Address Sex Salary Super_ssnDno DEPARTMENT Dname Dnumber Mgr ssn Mgr_start_date DEPT LOCATIONS Dnumber Dlocation PROJECT Pname Pnumber Plocation Dnum WORKS_ON Essn Pno Hours DEPENDENT Essn Depnenname Sex Bdate Relationship

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