Explain the components of database system in details., Database Management System

Assignment Help:

Explain the components of Database System in details.

Related Discussions:- Explain the components of database system in details.

Cube building in dataware housing , 1) Define a job scheduling strategy tha...

1) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pict

Describe the primary key functions, Describe the primary key functions? ...

Describe the primary key functions? Primary Key : The primary key is an attribute or a set of attributes in which uniquely identify a specific example of an entity. Every entit

Object-based models - data models, Object-based Models: Use objects as key ...

Object-based Models: Use objects as key data representation components . Examples:- Entity-Relationship Model: It is a collection of real world objects known as entitie

Explain the b+ tree, Explain the B + tree? B + tree is a type of tre...

Explain the B + tree? B + tree is a type of tree which denotes sorted data in a way that permits for efficient insertion, retrieval and removal of records, each of which is

Generalization and specialization, design a generalization specialization h...

design a generalization specialization hierarchy for a motor vehicle sales company. the company sells motorcycles, passenger cars, vens and buses.

Concept of foreign key, Fundamentals of Database Management 1. Explai...

Fundamentals of Database Management 1. Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls? 2. With a necess

What is the difference between link and reference, What is the difference b...

What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only

Adding redundant associations for efficient access, Adding Redundant Associ...

Adding Redundant Associations for Efficient Access Redundant associations do not add any type of information, therefore during design we should actually examine structure of o

What is the meaning of data independence, What is the meaning of Data In...

What is the meaning of Data Independence ?

Delete - referential integrity, During the deletion of a tuple two cases ca...

During the deletion of a tuple two cases can happen: Deletion of tuple in relation having the foreign key: In this type of case simply delete the desired tuple. For example, in

12/5/2013 4:25:50 AM A complete database system in an organization contains four *components*. a() Hardware: The hardware is a set of physical devices on which a database resides. It consists of one or additional computers, disk drives, CRT terminals, printers, tape drivers, connecting cables and so on. The computers used for processing the data in database may be mainframe, mini computers and personal computers. Mainframe and mini computers have usually been used on a stand-alone basis to support multiple users accessing a ordinary database. Personal computers are regularly used with stand-alone databases controlled and accessed by single user. Disk drivers are the key storage mechanism for databases. Desktop computers, CRT terminals and printers are used for entering and retrieving information from database. The success of database system has been a lot dependent on advances in hardware technology. A very large quantity of main memory and disk storage is necessary to keep and control a huge quantity of data stored in database. b() Software: A database system includes two kinds of software: 1()General Purpose database management software typically known as database management system (DBMS). 2()Application software that uses DBMS facilities to control the database to attain a specific business functions. Application software is normally written by programmers to solve specific company problem. It may be written in languages like COBOL or C or it may be written in a language supplied by DBMS like SQL. Application software utilizes the facilities of DBMS to way in and manipulate data in the database providing reports or documents needed for the information and processing needs of the company. The DBMS is system software alike to an operating system. It provides a lot of services to end users and programmers. DBMS usually provides most of the following services. a.1.) a central data definition and data control facility known as a data dictionary/directory or catalogue. b.2.) Data security and integrity mechanisms. c.3.) Concurrent data access for multiple users. d.4.) User-oriented data query, manipulation and reporting capabilities. e.5.) Programmer-oriented application system development capabilities.

12/5/2013 4:25:50 AM

A complete database system in an organization contains four components.

a() Hardware: The hardware is a set of physical devices on which a database resides. It consists of one or additional computers, disk drives, CRT terminals, printers, tape drivers, connecting cables and so on.

The computers used for processing the data in database may be mainframe, mini computers and personal computers. Mainframe and mini computers have usually been used on a stand-alone basis to support multiple users accessing a ordinary database. Personal computers are regularly used with stand-alone databases controlled and accessed by single user.
Disk drivers are the key storage mechanism for databases. Desktop computers, CRT terminals and printers are used for entering and retrieving information from database.

The success of database system has been a lot dependent on advances in hardware technology. A very large quantity of main memory and disk storage is necessary to keep and control a huge quantity of data stored in database.

b() Software: A database system includes two kinds of software:

1()General Purpose database management software typically known as database management system (DBMS).

2()Application software that uses DBMS facilities to control the database to attain a specific business functions.

Application software is normally written by programmers to solve specific company problem. It may be written in languages like COBOL or C or it may be written in a language supplied by DBMS like SQL. Application software utilizes the facilities of DBMS to way in and manipulate data in the database providing reports or documents needed for the information and processing needs of the company.

The DBMS is system software alike to an operating system. It provides a lot of services to end users and programmers.

DBMS usually provides most of the following services.

a.1.) a central data definition and data control facility known as a data dictionary/directory or catalogue.
b.2.) Data security and integrity mechanisms.
c.3.) Concurrent data access for multiple users.
d.4.) User-oriented data query, manipulation and reporting capabilities.
e.5.) Programmer-oriented application system development capabilities.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages