Introduction: In this report I am going to explain what a database is, features of a relational database, and the benefits of a relational database, purpose of primary keys and how they are used to build relationships, and I am also going to focus on, what are foreign keys and how they are been used, explain referential integrity and finally, how to apply referential integrity. I am also going to backed up my views and opinions with the valid references. Assessment introduction Iain’s & Co is a
service. What is a Relational Database? Relation database is a database model in which information is stored in separate tables stored in a linked
In what way does the structure of a relational database assist the easy retrieval of information? Benefits of reducing data redundancy Reducing data redundancy will help improve the database and it assists making data retrieval more simple and easy. Data redundancy makes the storage space needed for the database smaller as it is more efficient compared to older flat based databases which wasted space as it stored the same information in more than one field. Normalisation is what is used to design
of NoSQL databases has risen in the past decade as traditional relational databases cannot handle the vast amount of data as it was not designed to effectively manage such a large data collection. The following research paper gives an introduction to non-relational databases otherwise known as NoSQL. It defines what a NoSQL database is, the origins of its existence and the various types of NoSQL databases. It goes on to discuss the advantages and disadvantages of non-relational databases and the reason
an issue due to the growing need in business and academia. To resolve these issues a number of databases models have been created. Relational databases allow data storage, retrieval and manipulation using a standard Structured Query Language (SQL). Until now, relational databases were an optimal enterprise storage choice. However, with an increase in growth of stored and analyzed data, relational databases have displayed a variety of limitations. The limitations of scalability, storage and efficiency
U.S.A. 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
business and hence they can no longer keep up their customer database, inventory management, and daily sales monitoring with their current information management system. As their hired computer system consultant, I immediately recommended switching over to a computer based Point of Sale (POS) system to record sales. The next phase of upgrades will be to integrate the sales system with a database. The decision on what type of database to employ heavily depends on the scale of the business, plans
Database From Wikipedia, the free encyclopedia A database is an organized collection of data. The data are typically organized to model relevant aspects of reality in a way that supports processes requiring this information. For example, modeling the availability of rooms in hotels in a way that supports finding a hotel with vacancies. DBMS stands for "Database Management System." In short, a DBMS is a database program. Technically speaking, it is a software system that uses a standard method
user. Example: Payroll systems, Inventory Control, Manage student database, Word Processor, Spreadsheet and Database Management System etc. Application software consists of the programs for performing tasks particular to the machine's utilization. Examples of application software include spreadsheets, database systems, desktop publishing systems, program development software, and games." Application software is generally what we think of when someone speaks of computer programs. This software is
NoSQL is the generalized term to describe a relational database that uses no form of SQL language querying and consists of several data models to define it. My topic of this research paper is the Document Store data model. I will be covering the introduction of the model and its mechanics, how and when the model emerged, its strengths and weaknesses, and it’s real world applications. Introduction and How it Works Document Store or “Document-oriented database” is a data model within the NoSQL family