Database management Database management systemsystem

in in management information management information

system.system.

Presented byHARI PRIYA.R

definitiondefinitionDBMS:

It is a set of system software package, that are used to create and maintain data in database.

It is used to organize, store and access the data in the database.

Functions of dbmsFunctions of dbmsOrganize dataStore dataSort dataAccess dataModify and delete dataRedesign by reassigning storage

spaceData securityData integration

Components of dbmsComponents of dbmsData dictionaryData languageTeleprocessing monitorsApplication development toolsSecurity softwareQuery languageDatabase administratorWeb-based softwareMulti-platform

Features of dbmsFeatures of dbmsQuerying abilityReplication and duplicationRule enforcedSecurityComputationLogging accessAutomation and optimization

Role of dbmsRole of dbms

Data definition

Data security

Auto-trials

advantagesadvantagesDecision makingSearching and correlating dataMinimize duplication of dataSeparate and integrityHelps in data sharing across

servers

disadvantagesdisadvantagesVery expensiveHighly specialized personnel are

neededCentralization of data makes

organization vulnerableData security gets impossible

Types of database structureTypes of database structure

Hierarchical NetworkRelationalmulti-platform object oriented

Types of databaseTypes of databaseOperationalDistributedExternalEnd-user