Databases and types of databases

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DATABASES AND TYPES OF

DATABASES IN MARKET

Disclaimer: This presentation is prepared by trainees of baabtra as a part of mentoring program. This is not official document of baabtra –Mentoring PartnerBaabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt . Ltd

CONTENTS

DATABASERELATIONAL DATABASEDOCUMENT ORIENTED DATABASEEMBEDDED DATABASEGRAPH DATABASEHYPERTEXT DATABASEOPERATIONAL DATABASEDISTRIBUTED DATABASEFLAT FILE

A collection of interrelated data stored together to serve multiple applications

WHY USE DATABASE..???

Reduces data redundancyControls data inconsistencyFacilitates sharing of dataEnsures data security

RELATIONAL DATABASE

A relational database is an organized storage of data in tables.

Tables consist of rows and columns.

The columns constitute the attributes.

The rows constitute tuples.

Relational schema or relational data model.

DOCUMENT ORIENTED DATABASE

A computer program designed for storing, retrieving and managing document oriented information.

It does not require that every record contain the same fields

Document 1

{ FirstName: "Bob", Address: "5 Oak St.", Hobby: "sailing" }

Document 2

{ FirstName: "Jonathan", Address: "15 oak Pnt Road", Children: [ {Name: "Michael", Age: 10}, {Name: "Jennifer", Age: 8}, {Name: "Samantha", Age: 5}, {Name: "Elena", Age: 2}

] }

Document oriented database

EMBEDDED DATABASE

The databases consist of data developed by individual end users.

Examples of these are collection of documents, spreadsheets, presentations, multimedia and other files.

Embedded Database

GRAPH DATABASE A graph database is a database that uses graph structures with nodes, edges, and properties to represent and store data. 

Storage system that provides index-free adjacency.

Every element contains a direct pointer to its adjacent elements.

Graph Database

HYPERTEXT DATABASES

Hypertext databases are particularly useful for organizing large amount of disparate information.

For example they are useful for maintaining online encyclopaedias

Hypertext Database

OPERATIONAL DATABASE

Operational databases are used to store the detail operations of an organization.

It distinctly represents different operations within an organization.

Operational Database

DISTRIBUTED DATABASE

A database in which storage devices are not all attached to a common processing unit.

It may be stored in multiple computers located in the same physical location , or,

May be dispersed over a network of interconnected computers.

Distributed Database

FLAT FILES

The flat file style of database are ideal for all small amounts of data that needs to be human readable or edited by hand

Flat Files

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