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Introduction to DBMS

Subject: Computer Basics

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Overview

Database management systems are software packages that simplify the creation, user and maintenance of databases. This note briefly describe about DBMS.
Introduction to DBMS

What is DBMS?

DBMS stands for Database Management System. It is a information system or software, which

  • Creates and maintains databases.
  • Acts as interface between application programs and physical data files.
  • Separates logical and physical views of data.

Database management systems are software packages that simplify the creation, user and maintenance of databases. Several types of databases are used by organizations including operational, distributed, external, data warehouses and data marts. Some example of DBMS are Finacle (Core Banking Software), Pumori (banking Software), MS Access (Simple DBMS), MySql, Oracle etc.

Today DBMS is becoming one of the most vital parts of any organization as today's business enterprises cannot survive or succeed without quality data about their internal operations and external environment.

Difference between Database and DBMS

Database DBMS
1. It is a collection of data or related information. 1. It is a software package to manage database
2. It consists of data. 2. It manages data in the database.
3. It is a part of DBMS 3. It is a software system which contains database.
Example: phone diary, data of SLC exam, etc. Example: FoxPro, Access, etc.

Advantage of DBMS

  • It reduces data redundancy.
  • It creates link with different user and programs.
  • Easy for adding, editing and removing of data.
  • It provides better interacting environment to the user.

Disadvantages of DBMS

  • Costly and time consuming procedure
  • Qualified personnel to operate.
  • Additional hardware and software may be required.

Few popular DBMS

dBase III

dBase (also stylized dBASE) was one of the first and in its day the most successful database management systems for microcomputers. The dBase system includes the core database engine, a query system, a forms engine, and a programming language that ties all of these components together. dBase's underlying file format, the .dbf file, is widely used in applications needing a simple format to store structured data.

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dBASE was originally published by Ashton-Tate for microcomputer operating system CP/M in 1980, and later ported to Apple II and IBM PC computers running DOS. On the PC platform, in particular, dBase became one of the best-selling software titles for a number of years. A major upgrade was released as dBase III, and ported to a wider variety of platforms, adding UNIX, and VMS.

HINARI

HINARI Access to Research in Health Programme was set up by the World Health Organization and major publishers to enable developing countries to access collections of biomedical and health literature. There are up to 13,000 e-journals and up to 29,000 online books available to health institutions in more than 100 countries. HINARI is part of Research4Life, the collective name for four programs - HINARI (focusing on health), AGORA (focusing on agriculture), OARE (focusing on environment), and ARDI (focusing on applied science and technology). Together, Research4Life provides developing countries with free or low cost access to academic and professional peer-reviewed content online.

Things to remember
  • DBMS stands for Database Management System.
  • DBMS is a software package that s used to create and maintain databases.
  • Database is a collection of data where as DMBS is a software that manages databases

  • It includes every relationship which established among the people.
  • There can be more than one community in a society. Community smaller than society.
  • It is a network of social relationships which cannot see or touched.
  • common interests and common objectives are not necessary for society.
Videos for Introduction to DBMS
Database Management system ( DBMS ) Tutorial : Introduction
Database Management System: Basics
Questions and Answers
The collection of data/ information related to any subject or purpose is known as database.
Any four databases are as follows:

  • The telephone directory
  • Mark ledger
  • Attendance register
  • Encyclopedia
Data base management system (DBMS) is a system or mechanism that manages the database.
Any four DBMS are as follows:

  • MS Access
  • ORACLE
  • DBASE
  • FOXPRO
The differences between database and DBMS are as follows:

SN Database DBMS
1 Database is a collection of interrelated data Database management system is a software which can be used to manage the data by storing it on to the data base and by retrieving it from the data base.
2 The database holds the records, fields, cells with data. The DBMS is the "tools" used to manipulate the data in the database.
3 The examples of database are dictionary, encyclopedia etc. The example of DBMS are MS Access, DBASE etc.

Any four advantages of DBMS are as follows:

  • Mass volume of data can be updated easily and efficiently.
  • Record can be stored easily on the basis of key field.
  • It provides the data sharing facility.
  • It provides data security facility.
A table is a primary block of a database which stores all the data in rows and columns.
We need to create multiple table on MS Access because tale is a container that helps to stores multiple data in the forms of rows and columns.

Database is a collection of data organized to service many applications at the same time by storing and managing data so they appear to be at one location.

Database management systems are software packages that simplify the creation, user and maintenance of databases. Several types of databases are used by organizations including operational, distributed, external, data warehouses and data marts. Some example of DBMS are Finacle (Core Banking Software), Pumori (banking Software), MS Access (Simple DBMS), MySql, Oracle etc.

Today DBMS is becoming one of the most vital parts of any organization as today's business enterprises cannot survive or succeed without quality data about their internal operations and external environment.

Advantage of DBMS

  • It reduces data redundancy.
  • It creates link with different user and programs.
  • Easy for adding, editing and removing of data.
  • It provides better interacting environment to the user.

Disadvantages of DBMS

  • Costly and time consuming procedure
  • Qualified personnel to operate.
  • Additional hardware and software may be required.

HINARI is part of Research4Life, the collective name for four programs - HINARI (focusing on health), AGORA (focusing on agriculture), OARE (focusing on environment), and ARDI (focusing on applied science and technology).

The advantages and disadvantages of DBMS are as follows:

Advantage of DBMS

  • It reduces data redundancy.
  • It creates link with different user and programs.
  • Easy for adding, editing and removing of data.
  • It provides better interacting environment to the user.

Disadvantages of DBMS

  • Costly and time consuming procedure
  • Qualified personnel to operate.
  • Additional hardware and software may be required.
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