Solved Assighnments
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| AIOU |
Course: Databases-I (3410) Semester: Autumn 2015
Level: Associate Degree in Commerce Total Marks: 100
Pass Marks: 50
(Unit
1–4)
Note:
All questions are compulsory. Each question carries equal marks.
ASSIGNMENT No. 1
Q-1 a) What is meant by database? define and explain it with the help of proper examples
examples
b) briefly explain the different types of database with the help of suitable examples
Q.
3 The figure below shows a class list for AIOU. Convert this user
view to a set of 3NF relations. Assume the following: (20)
a) An instructor has a unique
location.
b) A student has a unique
major.
c) A course has a unique
title.
- Allama Iqbal Open UniversityClass List – Spring 2015Course Code: 1431Course Title: Fundamental of ComputersInstructor Name: D.EFInstructor Location: A-0002Student IDStudent NameMajorGrade25210AASE01A+23735BCDF02B+27265CDSE03C+27399DEDB04D+............
Q.
4 a) What do you meant by referential integrity? Give the basic rules for insertion and deletion that assure referential integrity. (10)
b) What
are the major differences between primary key & foreign key?
Explain it in detail with the help of suitable examples. (10)
Q.
5 Write short notes on the following terms:
d) Subtypes (05)
ASSIGNMENT
No. 2
(Unit
5–8)
Total Marks: 100 Pass Marks: 50
Note:
All questions are compulsory. Each question carries equal marks.
Q.
1 a) Define logical database model. What are its types? Explain it in
detail with the help of suitable examples. (10)
Ans types
(1) physiacal data model
(2) conceptual data model
Ans types
(1) physiacal data model
(2) conceptual data model
b) Define physical database design. Explain its main components and major
objectives in detail. (10)
Q.
2 a) Write down steps to create a simple form application to maintaininformation of employees of a company. (10)
b) Explain briefly the four basic components of a report. (10)
Q.
3 What do you mean by a report object navigator and object type? Give
list of different report object types and their description. (20)
Q.
4 a) What is meant by a form object type? Give list of differentobject types and their description. (10)
Q.
5 Write short notes on the following terms: (20)
3410 Database-I
Credit
Hours: 4 (3 +1)
Recommended
Book:
Modern
Data Base Management by Jeffery A. Hoffer and Oracle Developer/ 2000
Course
Outlines:
Unit–1
Database Foundation
Introduction,
Data and Information, Components, Advantages, Data Association,
Entities, Keys and Its Types, Attributes, Data Associations, Data
Structure Diagram
Unit–2
E-R Model
Basic Constructs (Symbols),
Degree of Relationships, Cardinality, Gerund, Modeling Time Dependent
Data, Super Types, Subtypes
Unit–3 Data
Models
Hierarchical, Network,
Relational, Comparison of All Data Models, Relation, Characteristics
of Relation, Converting E-R Model into Relation
Unit–4
Normalization
1NF, 2NF, 3NF
Unit–5
Data Base Design
Conceptual Design, Physical
Design
Unit–6
SQL Introduction
Introduction, Creating,
Altering & Deleting Table, Inserting, Updating, & Deleting
Rows, Querying The Tables, SQL Functions (Arithmetic, Group (Avg,
Count, Max, Min, Sum), Date, Special Functions (In, Between, Like,
Null)), Managing Multiple Tables
Unit–7
Introduction to Forms
Form Components, Form Module,
Blocks, Items, Objects, Object Navigator, Properties Window, Layout
Editor
Unit–8
Basic Form Design
Using Wizard for Form Design,
Customizing a Form, Defining Items (Buttons, Check Boxes, Display
Items, List Items, Radio Groups, Text Items), Creating LOV, Creating
Master Detail Form
Unit–9
Introduction to Report
Report
Design Considerations, Report Objects, Basic Report Design.
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