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Schema: a Student ID | Name | Major Major is a FK to Dept in Course e Course Dept Num Title P Dept is a FK to Abbrev in Dept h Dept Abbrev | Name | Office k SID is a FK to ID in Student; Enroll SID | Dept | Num | Date Dept-Num is a FK to Dept-Num in Course

Schema: a Student ID | Name | Major Major is a FK to Dept in Course e Course Dept Num Title P Dept is a FK to Abbrev in Dept h Dept Abbrev | Name | Office k SID is a FK to ID in Student; Enroll SID | Dept | Num | Date Dept-Num is a FK to Dept-Num in Course

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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) Express the following queries in Relational Calculus:
1. What are the abbreviations for department and course titles numbered ‘150’?
2. What are the student IDs of CS students taking DBMS course?
3. What are the enrolled courses for the student ID numbered ‘12345’?
4. List all the students having major CS and enrolled in year 2020
b) Using Inference Rules, identify the dependencies in the given schema?

Schema: Student ID Name Major d e Course Dept Num Title h Dept Abbrev Name | Office Major is a FK to Dept in Course Dept is a FK to Abbrev in Dept m SID is a FK to ID in Student; Enroll SID Dept Num Date Dept-Num is a FK to Dept-Num in Course
Transcribed Image Text:Schema: Student ID Name Major d e Course Dept Num Title h Dept Abbrev Name | Office Major is a FK to Dept in Course Dept is a FK to Abbrev in Dept m SID is a FK to ID in Student; Enroll SID Dept Num Date Dept-Num is a FK to Dept-Num in Course
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