Given the following relational schema (Hint: the bold text represents a primary key), Department (dept_code, dept_name, emp_num, dept_address, dept_ext) Professor(emp_num, emp_fname, emp_lname, emp_dob, dept_code, prof_ext) Write a relation algebra to find all professor names (firstname and lastname) who are in the department named "Biology"

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Given the following relational schema (Hint: the bold text represents a primary key),

Department (dept_code, dept_name, emp_num, dept_address, dept_ext)
Professor(emp_num, emp_fname, emp_lname, emp_dob, dept_code, prof_ext)

Write a relation algebra to find all professor names (firstname and lastname) who are in the department named "Biology"

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