Advantages And Disadvantages Of Database Management System

2. The model in which communities are viewed or categorized in terms of their impact to MindTree. This allows the CKO to look at the knowledge community landscape from a distance, and identify where

Relational Database Management Systems are probably the ones that we are most familiar with in 21st century computer science. Relational databases store

Database plays a major role in any organization. As a Database administrator(DBA) he/she is responsible in developing, implementing and maintaining the databases and DBA 's are also responsible in updating, backup 's and security of the databases. The first Database Management System was developed in the late 1960 's by two firms based on their network data model but in the early 1970’s a scientist of IBM introduced Relational database theory after six years IBM completed prototype on RDBMS (relational database management system). Oracle created the first versatile Relational Database Management Systems In 1983, which allowed organizations to use their DBMS on different machines including mainframes, workstations, and Pc 's. In 1993 Microsoft first created a database application called Access for Macintosh machines. Microsoft SQL server is a RDBMS which is used to store and retrieve the data by other software applications. There are 12 types of servers concentrated on various types of user 's from single computer to large networks (Microsoft SQL DBA).

Relational database contains data records that do not have a preset of relationships, permitting the user to define his or her relationship when accessing the data. Since users have much control over the data being accessed, relational databases can perform a variety of tasks. Such as defining the database; querying the database; adding, editing, and deleting data from the database; modifying the structure of the database; securing data from public access; communicating within the network; and exporting and importing data (Murthy, 2008).

Relational Database Management System (RDBMS) is an engine/system based on the relational model created by Edgar F. Codd in 1970. The major distinguish of this system is the ability to use tables for data storage while maintain and enforce certain data relationship. Another aspect of this system is that allow users to insert, update, retrieve, and delete specific content or contents storage in the database. Also, RDBMS provides relational operator codes that enable the relationship between two or more entities in a database (Dangerfield & Morris,1990). These system’s characteristics can be applied on business operations improving company management of small and large amount of information from a specific department or workplace. Relational Database Management allows monitoring all information flow from that specific department

The design of social networking sites on the site reflects the characteristics of real life social networks that are designed to let social network analysis work following a compatible database. Links are created between users which are persistent as the user's identity.

A social network is a structure of individuals and organizations that models their relations to one another. They are not unique to the Web, but their manifestation as data has lent itself to be analyzed. Special attention can be paid to the mathematical properties of the network.

A unique database model is implemented by each database depending upon the logical structure of the data that is being handled by that database. There are numerous distinct database models out in the market at present that allow the application developers to effectively manage the data. The most widely welcomed

Definition The term “social networking” does not exclusively belong to digital technology on the Web. On the contrary, social networks had been studied from the beginning of 20th century with the aim to comprehend how the members of a certain community interact and which mechanism can determine the interaction itself. Today social networking commonly refers to all those activities that are carried out within specific online services that provides free space and software tools which

A kind of database organisation system that every record style can have many owner .As well as this model

This document contains all the information about the advantages and disadvantages of different database models.

Once data are collected and integrated, they are stored in effective formats to facilitate their efficient and easy retrieval. For such purposes, the concept of the database has been utilised. A database is referred to as “the collection of related data, which are organised so that useful information may be extracted” (Wiederhold, 1980). Databases provide a single and comprehensive place for storing data. A collection of various paper-based files and electronic spreadsheets or files containing similar types of information are also categorised as databases. However, databases are considered effective not only because relevant data can be stored in a comprehensive and single format but also because they can be linked in an effective way to

A tree-structure diagram is the schema for a hierarchical database. Such a diagram consists of two basic components:

One of the most popularly used database models is the relational model. It was developed by Edgar Codd in 1969. This model provides a declarative method for specification of data and queries. In a relational model of a database, the database users directly state the information they want to be retrieved from it and abstract away from the responsibility of describing the data structures that are used to store data. A database that confirms to the relational database model is known as a relational database.

ii) Each student is related to a set of parent information, each parent information can be owned by more than 1 student.