Databases

Database A database is an organised body of related files and or information. It is simply an automated library system an is maintained as an integral part of most organisations worldwide. A cite on the World Wide Web, the Webopedia Computer Dictionary, refers to the database as a collection of information organized and presented to serve a specific purpose. (A telephone

Database Security Databases are used to store different types of information, from data on an e-mail account to important data of government agencies. The security of the database inherits the same difficulties of security facing the information, which is to ensure the integrity, availability and confidentiality. Database management system must provide mechanisms that will assist in this task. SQL databases implement mechanisms that restrict or enable access to data according to profiles or

P1 - Explain the features of a relational database. This is to be shown as a report or presentation and must discuss the following. • Features: entities; attributes; relationships; • Entities: primary keys, foreign keys; referential integrity; attributes; • Attributes: field properties e.g. data types, size, validation rules • Relationships: one-to-many; one-to-one; many-to-many Relational database – This is a database that contains more than one table of which are linked using key fields.

Survey on graph databases XIAOTONG FU Informatics, University of Edinburgh Abstract. Graph databases, also called graph-oriented database, is a type of not only SQL (NoSQL) database based on graph theory that can store, map and query data relationships. Because this kind of database ensures its robust performance in processing graph-like data, it has been widely used in industry, for instance, Facebook and Twitter are using graph databases to store and analyze their user proles. This paper re- viewed

COMPARISON OF RELATIONAL DATABASE MODEL AND NO SQL DATABASE SYSTEM: The Relational database and the No SQL database are both appropriate database methods depending on the way they are being implemented and the purpose of the business for which they are being incorporated. However, both the database approaches have distinct wide variety of characteristics, based on which they can be compared and contrasted in the following way. STRUCTURE OF DATA: The data structure of a relational database comprises of table

requires an enhanced data management strategy to sustain their business operations. Their existing data repository for its reservation processing system is limited in business intelligence and reporting functionalities. The tour operator seeks a database management specialist to assist them in leveraging their data sources to enable them to forecast and project tour sales appropriately. Imagine that you have been hired to fulfill their need of enhancing the data repository for their current reservation

Database Design Scenario Currently a school uses a non-computerised database system to store the following information about its students: roll class, surname, first name, guardian 's name, address, student 's date of birth, gender, sport house, emergency-contact telephone number, mailing name, list of subjects offered, and subjects in which the student is enrolled. The system takes up a large amount of space, has many duplicated entries some of these with mistakes and it is time consuming

Relational database normalization is the process of decomposing relations with anomalies to produce well structured relations. This paper delves into relational database normalization giving the reason why a database schema in third normal form is considered to be of higher quality than an un-normalized database schema. Relational database normalization entails organizing database and it includes the creation of tables as well as relationships establishment between the tables using designed rules

to discuss in detail the uses and the purpose of database software. The purpose of database software includes many reasons, which include that Database software can store a considerable amount of data very quickly and they take up a very small amount of space. Also Database software can organise data appropriately, which means that the data isn’t difficult to find, so you can find the data with ultimate ease and very quickly. Furthermore Database software allows you to easily sort the data in the

kaakinola@utep.miners.edu Z Specifications derived from the Constraints in a Relational Database of an ecommerce website? Abstract— The project is simply derivation of Z specifications form the constraints in a relational database of an ecommerce website. An ecommerce website is developed from scratch using modern technology WordPress and Bootstrap. I developed the website as well as relational database where the products to be displayed on the website are stored. I used my computer system as