Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask DBMS Expert


Home >> DBMS

Attempt all the problems.

Section-A

problem1) describe the rules for deriving relations which represent strong entity types, weak entity types, one-to-one binary relationship types, one-to-many relationship types, multi-valued attributes, and super class / subclass relationships.

problem2) describe the difference between hashing and indexing? What type of data structure might be implemented to support index-based search ensuring fast retrieval of information in a uniform fashion?

problem3) For each of the following application areas, describe why a relational database system will be inadequate. List all specific system components that would be need to modify.

i) Computer Aided Design

ii) Multimedia Database.

problem4) Consider following relations:

Faculty (F_id, F-name, F-designation) [The table contains several tuples having f-id as primary key]

Patient (P_id, P_name, p_address, date of admission) [The table contains several tuples and is stored on P_id]

Consultation date (C_date, F_id, P_id)

prepare the following queries:

(i) Find details of the whole faculty whose designation is a senior doctor and have got consultation date in July 2007.

(ii) Name the details of all patients who have got consultation dates fixed between 15th  August to Sept. 2007

Section-B

Case Study

Let us assume that XYZ University's Administration Office needs a database to handle student’s transcript data. The following are the requirements:

a) The database keeps track of each student's name, enrollment no. (E. No.), communication address and phone no., permanent address and phone no., date of birth, sex, class, department, college, major subjects (a 4-char code).

b) Some applications need to refer individually to the city, state (2-char abbrv.) and zip code (some use 5-digit, some use 9) of the student’s address. Some applications need to refer to student’s first and last names separately. Enrollment no. should be unique number for each student.

c) Each department has a name, a 3-char code, location (main building and room number), office phone, college, and a list of instructors. Many colleges are affiliated to the University. Department names and code are unique, within university.

d) Each instructor has his/her enrolment no., first name and last name.

e) The course catalog contains the list of courses that XYZ University offers. Each course has a number (e.g. 543), name, description, credit hours and department. Course numbers are unique within a department, but not unique across the university (so taken together, they are unique). Not every course is offered every semester.

f) Each section has a single instructor (first and last names - no team-taught class), semester (1-4) year (2-digit), course number and section number.

g) A grade report contains student's name, E. No, course number and section, letter grade (A, B,C, D, E).

Note: If the above user requirements leave out any significant detail, suppose that it is handled the way XYZ does things in the real world.

Answer the following problems based on the above requirements and specifications:

(i) Draw E-R diagram of the above. Name all the accompanying attributes/domains (including constraints).

(ii) Convert your E-R diagram to the relational schema:

• Use naming as specified in the E-R diagram.

• Use format as shown in the ex below, including:

• Table name in caps

• List of attributes with primary key underlined

• Foreign key specified with table/attribute it references (with .. cascade, it suitable)

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M93503

Have any Question? 


Related Questions in DBMS

Data information decision please respond to the

"Data Information Decision" Please respond to the following: • With the obvious pace of current technology development, data continues to grow daily. Imagine that you are a Database Administrator for a large organization ...

Data analysis assignment- apriori analysis and cluster

Data Analysis assignment- ApriorI analysis and Cluster analysis CLUSTER ANALYSIS The purpose of this assignment is to demonstrate steps performed in a K-Means Cluster analysis. Review the "k-MEANS CLUSTERING ALGORITHM" s ...

Question - databasesuse database software such as microsoft

Question - Databases Use database software such as Microsoft Access or LibreOffice Base to perform the following actions. (Refer to Workshops 9 & 10 for help.) A. Create a new database. Add tables based on the design of ...

Restaurants and fast-food chains rely heavily on business

Restaurants and fast-food chains rely heavily on business intelligence to make important decisions. Casinos do as well. Some of the leading restaurants, fast-food chains, and casinos using data warehouses include AFC Ent ...

Hospital database determining keysdevelop a microsoft

Hospital Database: Determining Keys Develop a Microsoft Access database based upon the following business scenario. Be sure to include tables, fields, keys, relationships, and test data in your database. Your final submi ...

Assignment database modeling and normalizationimagine that

Assignment: Database Modeling and Normalization Imagine that you work for a consulting firm that offers information technology and database services. Part of its core services is to optimize and offer streamline solution ...

Suppose that you are the database developer for a local

Suppose that you are the database developer for a local college. The Chief Information Officer (CIO) has asked you to provide a summary of normalizing database tables that the IT staff will use in the upcoming training s ...

1 what is the most popular database model2 how are primary

1. What is the most popular database model? 2. How are primary and foreign keys different? 3. What are the five important software components of a database management system? 4 What are the four major types of data-minin ...

Fundamentals of databases assignment 1 -q1 explain the

Fundamentals of Databases Assignment 1 - Q1. Explain the distinction between total and partial constraints. Q2. Explain the difference between a weak and a strong entity set. Q3. Explain the distinction between disjoint ...

Lab assignment working with additional database objectslab

Lab Assignment: Working with Additional Database Objects LAB OVERVIEW Scenario and Summary There is a lot more to a database than just tables and the data in them. A very important part of database security has to do wit ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen