This document discusses database management systems (DBMS). It defines a DBMS as software used to create and maintain databases. It describes the functions of a DBMS as organizing, storing, accessing, modifying, deleting, and securing data. Some key components are the data dictionary, data language, query language, and database administrator. The document also outlines features, roles, advantages, disadvantages, and types of DBMS.

1. Database managementDatabase management
systemsystem
inin
management informationmanagement information
system.system.
PresenteD by
Hari Priya.r

2. DefinitionDefinition
DBMS:
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.

3. functions of Dbmsfunctions of Dbms
Organize data
Store data
Sort data
Access data
Modify and delete data
Redesign by reassigning storage
space
Data security
Data integration

4. Components of dbmsComponents of dbms
Data dictionary
Data language
Teleprocessing monitors
Application development tools
Security software
Query language
Database administrator
Web-based software
Multi-platform

5. features of dbmsfeatures of dbms
Querying ability
Replication and duplication
Rule enforced
Security
Computation
Logging access
Automation and optimization

6. role of dbmsrole of dbms
Data definition
Data security
Auto-trials

7. advantagesadvantages
Decision making
Searching and correlating data
Minimize duplication of data
Separate and integrity
Helps in data sharing across
servers

8. disadvantagesdisadvantages
Very expensive
Highly specialized personnel are
needed
Centralization of data makes
organization vulnerable
Data security gets impossible

9. types of databasetypes of database
structurestructure
Hierarchical
Network
Relational
multi-platform
 object oriented

10. Types of daTabaseTypes of daTabase
Operational
Distributed
External
End-user