Data warehousing students at Virtual University know that Assignment 1 of CS614 is not a simple theory paper. It asks you to look at a real hospital data relation, find its keys, and explain why a poorly designed table creates problems. Many students understand the definitions but get stuck when they must apply them to actual rows of data. This post gives you a complete, verified solution file for CS614 Assignment 1 Fall 2026 so you can check your own work and understand each answer step by step.
The solution file linked below covers every part of the assignment in clear, simple language. It works through the HOSPITAL_DATA relation, identifies the composite primary key, separates prime attributes from non-prime attributes, and shows with examples how repeated data causes insertion, deletion, and update anomalies. If you are preparing this assignment, use the file as a study guide first and as an answer key second.
What Is CS614 Assignment 1 About?
CS614 Data Warehousing is the course that teaches how large organizations collect, clean, store, and analyze data for decision making. The first assignment of Fall 2026 tests the foundation of that subject: relational database design. You are given a single wide relation called HOSPITAL_DATA that mixes patient records, doctor details, medicine information, and billing data in one table. Your task is to analyze that table, find its keys, and explain the problems created by its design. Students who only memorize definitions often lose marks here, because the assignment rewards careful reasoning about real rows of data.
What Does the Solution File Cover?
The solution file works through the assignment in the same order as the questions. Each answer is explained in plain words with reasons, so you can follow the logic instead of memorizing a final answer. Here is what it covers.
What Is the Composite Primary Key of HOSPITAL_DATA?
A primary key must identify every row uniquely. In HOSPITAL_DATA, no single column can do that job. One patient can visit many doctors, one doctor can treat many patients, and one medicine can be prescribed many times. The solution shows that only the combination of PatientID, DoctorID, and MedicineID together identifies a row uniquely, which makes this combination the composite primary key. The file also explains why dropping any one of these three columns breaks uniqueness, with a short example for each case.
Which Attributes Are Prime and Which Are Non-Prime?
An attribute is prime when it is part of any candidate key, and non-prime when it is not. Because the composite primary key is PatientID, DoctorID, and MedicineID, these three attributes are the prime attributes of the relation. Every other attribute, including PatientName, DoctorName, MedicineName, Date, Quantity, and Price, is a non-prime attribute. The solution lists each attribute with its status and a one line reason, so the classification is easy to check against your own answer.
How Does Data Redundancy Appear in This Table?
Redundancy means the same fact stored again and again. In HOSPITAL_DATA, a patient name is repeated on every row for every medicine that patient receives. A doctor name is repeated for every patient that doctor treats. A medicine name and its price are repeated on every row where that medicine appears. The solution gives concrete examples of these repetitions from the table and explains why they waste storage and, more importantly, why they open the door to inconsistent data when one copy is changed and another is not.
What Are Insertion, Deletion, and Update Anomalies?
Anomalies are the practical problems caused by redundancy. An insertion anomaly appears when you cannot add a new medicine to the system until some patient receives it, because the table has no row without a patient. A deletion anomaly appears when deleting the last row of a patient also deletes information about a doctor or a medicine that you wanted to keep. An update anomaly appears when the price of a medicine changes and you must update many rows, and missing even one row leaves the data inconsistent. The solution explains each anomaly with an example from HOSPITAL_DATA so the idea is clear for exams as well as for the assignment.
How to Download the Solution File
You can download the complete CS614 Assignment 1 solution file from the link below. The file contains all the answers discussed above, written out in full so you can compare them with your own work.
If the link asks you to sign in, use your own Google account. The file opens in your browser and can be saved for offline study.
How to Use This Solution the Right Way
A solution file helps most when you use it as a learning tool rather than a shortcut. Read the assignment question first, try your own answer, and then compare it with the file. Where your answer differs, read the reason given in the file and note the concept behind it. For revision, you can also use our VU handouts page and VU short notes page to revisit the database design topics before your midterm.
- Attempt each question yourself before opening the solution, even if your first attempt is rough.
- Rewrite every answer in your own words before submitting, so your work reflects your own understanding.
- Pay special attention to the anomaly examples, because the same ideas return in quizzes and in the midterm paper.
- Keep the file for revision, and test yourself later using the VU midterm past papers for CS614.
Frequently Asked Questions
Is this solution made for Fall 2026?
Yes. This solution file was prepared for CS614 Assignment 1 of the Fall 2026 semester, and it follows the HOSPITAL_DATA relation given in that assignment.
Should I submit the solution exactly as it is written?
No. Use it to understand the answers and then write your own version. Submitting copied work can create problems, and writing in your own words also prepares you for quizzes and exams on the same topics.
What should I do if one question in my assignment looks different?
First, check whether the difference is only in wording or in the data itself. If the relation or the columns differ, follow the same method shown in the file: test each column for uniqueness, separate prime from non-prime attributes, and trace the anomalies from the repeated facts.
Where can I find more CS614 study material?
You can revise database design topics from our VU handouts page and VU short notes page, and practice older papers from our VU final term past papers page.
Last updated: October 2026.
