Database management system, Oracle SQL and PL/SQL - Chapter1

1. DATABASE MANAGEMENT SYSTEM
ORACLE SQL AND PL/SQL
PART I : Basic Concepts & Oracle SQL
Teaching Aid Material
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2. DATABASE MANAGEMENT SYSTEM
ORACLE SQL AND PL/SQL
PART I : Basic Concepts & Oracle SQL
CHAPTER 1
Database Basics
System Analysis & Design
Data Flow Diagram
Entity Relationship Model

3. CHAPTER 1
Database Basics
1 of 3
A database is a collection of interrelated data
stored together without harmful or unnecessary
redundancy
ADVANTAGES OF DATABASE

Centralized management

Sharing of Database

Security
DISADVANTAGES OF DATABASE

Implementation Cost

Maintenance Cost
Page reference in the book: 3-5

4. CHAPTER 1
Database Basics
2 of 3
CHARACTERISTICS OF DBMS
 Data Representation
 Performance
 Integrity
 Minimal Redundancy
 Privacy
 Security
Page reference in the book: 5

5. CHAPTER 1
Database Basics
3 of 3
DBMS ARCHITECTURE



Internal Level
Conceptual Level
External Level
DBMS MODELS
 Record-Based Model [ Ex. Network, Hierarchical & Relational]
 Object-based Database Model
 Physical Data Model
Page reference in the book: 6-7

6. CHAPTER 1
Software Development Life Cycle
1 of 2
SDLC MODELS




Waterfall
Iterative Waterfall
Prototype
Evolutionary
Page reference in the book: 7-10

7. CHAPTER 1
Software Development Life Cycle
2 of 2
SDLC PHASES

Feasibility study

System Analysis

System Design

Coding

Testing

Implementation

Maintenance
Page reference in the book: 7-10

8. CHAPTER 1
Data Flow Diagram
1 of 4
Pictorial way of showing the flow of data into,
around and out of a system
MAJOR COMPONENTS

Process

Data Flow

External Entity

Data Stores
Page reference in the book: 10-12

9. CHAPTER 1
Data Flow Diagram
2 of 4
Page reference in the book: 10-12

10. CHAPTER 1
Data Flow Diagram
3 of 4
Page reference in the book: 10-12
-

11. CHAPTER 1
Data Flow Diagram
4 of 4
Page reference in the book: 10-12

12. CHAPTER 1
Entity Relationship Model
1 of 4
ER Model is a high-level
database design modeling
technique.
ER Model use a set of
constructs and rules to
provide a precise
representation of the data
content, structure and
constraints required by an
application.
Page reference in the book: 13-17

13. CHAPTER 1
Entity Relationship Model
2 of 4
CARDINALITY

One to One
:
Country and its capital

One to Many
:
State and cities

Many to Many
:
Parents and their children
Page reference in the book: 13-17

14. CHAPTER 1
Entity Relationship Model
3 of 4
EXTENDED
ER MODEL
COMPONENTS
Page reference in the book: 13-17

15. CHAPTER 1
Entity Relationship Model
4 of 4
Page reference in the book: 13-17

16. CHAPTER 1
Short/Objective Type Questions
1 of 5
Q1. What is the role of ‘security’ in DBMS?
Q2. What do you mean by ‘maintenance’ of a database?
Q3. Briefly describe various types of database models.
Q4. Mention name of two customer friendly SDLC modules.
Q5. Which phase of SDLC generates the maximum revenue in the software
industry?
Q6. Describe black box, white box, alpha and beta level test strategies.
Q7. Describe four major components of data flow diagram.
Q8. Elaborate the terms aggregation, generalization and specializations in
ER model.
Q9. How module is ER represented in the tabular form?

17. CHAPTER 1
Short/Objective Type Questions
2 of 5
Q10.
(a)
(b)
(c)
(d)
The DFD of an application mainly shows
Processing requirements and the flow of data
Decision and control information
Communication network structure
Entity relationship model
Q11.
(a)
(b)
(c)
(d)
In an ER diagram, ellipse represents
Entity set
Attributes
Generalization
Specialization
Q12.
(a)
(b)
(c)
(d)
ER modeling technique is a
Bottom-up approach
Black-box approach
Top-down approach
White-box approach

18. CHAPTER 1
Short/Objective Type Questions
3 of 5
Q13. Primary job of database administration is/are
a. Backup
b. Recovery
c. Fine-tuning
d. None of the above
Q14. Low-level data representation deals with
a. Number of records
b. Physical storage of data
c. Logical representation of data
d. None of the above
Q15. Match the following w.r.t.
a. Internal level
b. External level
c. Conceptual level
DBMS.
a. View level
b. Physical level
c. Logical level

19. CHAPTER 1
Short/Objective Type Questions
4 of 5
Q16.
(a)
(b)
(c)
(d)
Record based model(s) is/are
ER model
Network model
Hierarchical model
Physical data model
Q17. The number of phases in SDLC is
a. 5
b. 6
c. 7
d. 8
Q18.
(a)
(b)
(c)
(d)
In SDLC, DFD and ER models are part of
Feasibility study
System analysis
System design
System study

20. CHAPTER 1
Short/Objective Type Questions
5 of 5
Q19. In ER model, derived attribute is represented by
a. Double rectangle
b. Double diamond
c. Dotted ellipse
d. Dotted rectangle
Q20. In ER model, degree of relationship is based on
a. Number of attributes
b. Number of entities
c. Number of relations
d. None of the above

21. CHAPTER 1
Home Assignment
WORKOUT SECTION

22. DATABASE MANAGEMENT SYSTEM
ORACLE SQL AND PL/SQL
PART I : Basic Concepts & Oracle SQL
Periods Proposed - 10
Chapter 1
Database Basics, System Analysis & Design, Data Flow Diagram & ER Model
2 Periods [Theory]
Chapter 2
Relational Algebra and Normal Forms
2 Periods [Theory]
Chapter 3
SQL Basics, Functions, Sub query & Joins
1 Period [Theory]
2 Period [Practical]
Chapter 4
Data Manipulation Language, Objects, Constraints and Security in Oracle
1 Period [Theory]
2 Period [Practical]

23. THE BOOK
The book is organized into three parts to introduce the
theoretical and programming concepts of DBMS. Part I
(Basic Concepts and Oracle SQL) deals with DBMS basic,
software analysis and design, data flow diagram, ER model,
relational algebra, normal forms, SQL queries, functions,
sub‐queries, different types of joins, DCL, DDL, DML, object
constraints and security in Oracle. Part II (Application Using
Oracle PL/SQL) explains PL/SQL basics, functions,
procedures, packages, exception handling, triggers, implicit,
explicit and advanced cursors using suitable examples. This
part also covers advanced concepts related to PL/SQL, such
as collection, records, objects, dynamic SQL and
performance tuning. Part III (Advanced Concepts and
Technologies) elaborates on advanced database concepts
such as query processing, file organization, distributed
architecture, backup, recovery, data warehousing, online
analytical processing and data mining concepts and their
techniques.
KEY FEATURES
 Includes about 300 examples to illustrate the concepts.
 Offers about 400 objective type questions.
 Provides about 100 challenging workouts.
TEACHING AID MATERIAL
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explore the contents.

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