Question: Q.3. Using the database schema shown below and relational algebra operators (ONLY), design the following queries. Queries not written in RAO will not be graded

Q.3. Using the database schema shown below and relational algebra operators

Q.3. Using the database schema shown below and relational algebra operators (ONLY), design the following queries. Queries not written in RAO will not be graded and assigned ZERO grade. (a) List first and last names of all the employees who work in the department that is located in Houston and managed by an employee whose last name is Wong. (b) Retrieve the last name and first name of all employees working for Administration department and who also work on the project(s) that is controlled by Research department. You will need these symbols for queries

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