Relational database

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Answer: In this modern day, databases are based heavily on relational models in which tables are the fundamental building blocks. We may ask the question as to where ER comes in database design, its importance and the need for ER modelling in modern databases. In an attempt to answer these questions, we get to understand that ER is a high-level description of the proposed database, useful for understanding the requirements gathered from a client, in our case The Reproduction Antiques Company. It…

EX: The database in a hospital contains data such as name of the patient, address, disease and contact number. Definition of Database: The term database is determined as data collection in an organized manner and every data present is related to each other in some other way. Definition of Database Management Systems (DBMS): DBMS is a software that consists of collection of programs that are used to maintain and control the database. The main purpose of DBMS is to construct the database for the…

that can be easily delineated into respective tables to make Database Management Systems capable of utilizing the data effectively. With normalization, information can be confidently accurate in any system and it is to a business’ loss if the fundamentals of normalization are ignored. So what does Normalization look like? There are four levels called first, second, third and fourth normal forms. First Normal (1NF) requires the database to have no repeating groups and must identify all the key…

The Case of Phar-Mor Inc Read “The Case of Phar-Mor Inc.” which can be accessed through the DeVry online library. In 3-4 pages (12-pt type, double-spaced) summarize the case and answer the following questions: 1. Could SOX have prevented the Phar-Mor fraud? How? Which specific sections of SOX? The appropriate response is begging to be proven wrong because the degree that Phar-Mor went to conceal the extortion it might have taken quite a while still to reveal it notwithstanding, over the…

Task 10 (D1) Discuss how potential errors in the design and construction of a database can be avoided. One of the potential errors that can occur when creating a database is that field names and names can be spelt incorrectly due to human error this can be difficult to spot if the database is big the way of making sure that there are no naming errors is to make sure that every is checked regularly and more than twice to make sure that the chances of finding a spelling mistake is reduced. Using…

Data integrity ensures that data is ultimately accurate. This is important when trying to analyze data that is stored in the database or data warehouse. Inaccurate data will lead to false results in reporting and analytics that will affect any business decisions that need to be made. When dealing with data integrity, having the full or complete set of data is a necessity. If only half or some of the data is entered than it cannot be considered accurate. There are several ways to ensure that data…

CHAPTER 4 IMPLICIT RELATIONS ON WIKIPEDIA USING ASSOCIATION LINK NETWORK Finding the semantic similarity, use the Fuzzy Cognitive Mapping Daniel (2009). Fuzzy logic is a form of much logical value. Compared to traditional binary sets fuzzy logic variables may have a truth value that ranges in degree between -1 and 1. Fuzzy logic has been extended to handle the concept of partial truth, where the truth value may range between completely true and completely false. A…

In order to have a good relational database and to avoid unnecessary data in your database systems you are required to perform normalisation. According to Rob et al., (2008) Normalization is a process for evaluating and correcting table structures to minimize data redundancies, thereby reducing the likelihood of data anomalies. √ Normalisation helps us to structure our database tables effectively in order to improve the performance of the database systems. Once you have a good structured table,…

American College of Commerce and Technology The Role of Database Administrator Submitted by: SRIKANTH JAMPALLY ------------------------------ Directed by: Professor Jamal Nouh (Ph.D.) Department of Computer and Information Sciences In partial Fulfillment of the CIS-510 Database Design and Analysis ---------------------------------- Spring, 2016 Table of Contents Abstract 3 Introduction 4 How to become a DBA? 5 DBA skills requried 6 DBA responsibilities 8 Conclusion 11…