DBMS | Introduction of DBMS


Unit 1: Introduction of DBMS

Basic Concept (Data vs. Information, Database), Definition of DBMS, Characteristics of DBMS, Comparison of file processing system with DBMS

Functions of DBMS, Advantages and Disadvantages of DBMS

Structure of DBMS / Architecture of database system

Schema, Subschema in DBMS

Data abstraction, Data independence

Data dictionary, Users of databases.

Unit 2: Data Models

Introduction, Definition, Features of data models


Object based data models- Entity Relationship Model, Cardinality;

Record based models-

Hierarchical Model

Network Model

Relational Model

Physical Data Models.

Keys: Primary key, foreign key, candidate key, super key, unique key.


Concept of normalization, advantages, First NF, Second NF, Third NF, examples of normalizations

Unit 3: Database Management through Ms-Access

Introduction of Ms- Access, features, database creation, table creation, insert records,

Queries, forms and report creation.

Case Study:

Normalized database design system for

Library management system

Inventory management system


Introduction of SQL, features

SQL data types

DDL commands- create table, describe table, alter table and drop table commands

DML-insert, delete, update commands

DQL commands- All select commands, aggregate functions, order by clause.

Unit 4: Organization of Database System

Introduction of file, file types

Organization of file-

Heap file organization

Serial file organization

Sequential, index sequential file, random access file (direct access file)

Types of Database System:

Centralized database system

Client-server system

Distributed database system.

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