Ask a Question

Categories

• All
• Computer Science & Engineering
• Information Technology
• Electronics & Communication
• Electrical Engineering
• Instrumentation (AEIE)
• Mechanical Engineering
• Civil Engineering
• MBA
• MCA
• BCA

Consider the relation schemas given below: STUDENT (student_id, name) ENROLLEDIN (student_id, subject_code) SUBJECTS (subject_code, lecturer) Write relational algebra for the following: i) who teaches CP 1500 or CP 3020 ii) who teaches at least two different subjects? iii) what are the names of the students taking a subject taught by Roger?