Database Management System or in brief is a technology of storing and retrieving users’ data along with appropriate security measure

1. DatabaseManagement Systemand it’s Pros and Cons
A database managementsystem(DBMS) is asoftware throughwhichdatabase iscreatedand managed.
DBMS isa way through whichusers andprogrammersto create,retrieve,updateand managedata.
The DBMS manages three things:the data,the database engine andthe database schema.
Typesof database organization:
1) Relational Database:RelationshipDatabase presentsinformationintableswithrowsandcolumns.
Advantages:
 Data can be easilychanged.
 Securitycan be maintainedeasily
 Data duplicationisavoided
 Updationinthe data can be done easily
Disadvantages:
 Data Complexity
 settingupand maintainingthe database systemisexpensive
2) Flat Database:Inthis database consistof one large table insteadof several interconnected
tables.
Advantages:
 Hardware and software requirementsisminimal
 Suitedbestforsmall databases.
 Easy to understandandimplementationisalsoeasy.
Disadvantages:
 Time consumingsearchingprocess.
 Data is notconsistent
 Lesssecurity
 Sharingof informationislittle difficulttask
3) ObjectOrientedDatabase: Inthiskindof Database informationisrepresentedinthe formof objects.
Advantages:

2.  Maintenace isreduced.
 Model the real world
Disadvantages:
 Do not provide adequate security
 Lack of standards
4) Hierarchical Database: Inthis, data is organizedintoatree-likestructure .Itusesa one-to-many
Relationship
Advantages:
 Navigationprocessgetfaster.
 Ease of understanding.
Disadvantage:
 Rigidstructure.