database and database types

DATABASE And TYPES

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

Database Definition

A database is an application thatmanages data and allows fast storageand retrieval of that data.

Different Types of Database

• operational databases• Graph databases• Relational database• Object oriented database• Embedded database• Flat files

Operational database

Operational database management systems (alsoreferred to as OLTP On Line Transaction Processingdatabases), are used to manage dynamic data inreal-time. These types of databases allow you to domore than simply view archived data.

Operational databases allow you to modify thatdata (add, change or delete data), doing it in real-time

Example For operational database

• A company might have an operationaldatabase used to track warehouse/stockquantities. As customers order productsfrom an online web store, an operationaldatabase can be used to keep track ofhow many items have been sold andwhen the company will need to reorderstock.

Example For operational database

Graph database

• In computing, a graph database is adatabase that uses graph structures withnodes, edges, and properties torepresent and store data.

• Nodes represent entities such as people,businesses, accounts, or any other itemyou might want to keep track of.

• Edges are the lines that connect nodes tonodes or nodes to properties and theyrepresent the relationship between thetwo

• Most of the important information isreally stored in the edges

Example

Relational database

• A relational database is a collection ofdata items organized as a set of formallydescribed tables from which data can beaccessed or reassembled in manydifferent ways without having toreorganize the database tables.

Example

•

object-oriented database

An object database (also object-orienteddatabase management system) is adatabase management system in whichinformation is represented in the form ofobjects as used in object-orientedprogramming

Example

Embedded database

An embedded database system is a databasemanagement system (DBMS) which is tightlyintegrated with an application software thatrequires access to stored data, such that thedatabase system is "hidden" from theapplication’s end-user and requires little or noongoing maintenance. It is actually a broadtechnology category that includes

Example

• When an application accesses a Derbydatabase using the Embedded DerbyJDBC driver, the Derby engine does notrun in a separate process, and there areno separate database processes to startup and shut down. Instead, the Derbydatabase engine runs inside the sameJava Virtual Machine (JVM) as theapplication

Flat files

• A relatively simple database system inwhich each database is contained in asingle table.

Example

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