Database normalization

Hierarchal Database “In the network model, the data are represented by collections of records and relationships between data are represented by links. This structure holds for the hierarchical model as well. The only difference is that, in the hierarchical model, records are organized as collections of trees, rather than as arbitrary graphs.”(http://codex.cs.yale.edu/avi/db-book/db6/appendices-dir/e.pdf, 17-10-2014) This database model use rules as each child has one parent and each parent can…

Homework #1 1. The search term I used is “database security” because I am interested in it when I read through it. Moreover, I want to know more about the term “database”, and it found it means a controlled collection of data, and metadata, stored on computer. I also want to learn about ways to protect against threats that specifically target databases. Besides, I searched about “Relational Databases” because most databases are relational database, and they store their data in relation. 2. I…

automatically. Identify an individual image from the live image by comparing the image with the database which is stored in the database. After identify the face from the live image the facial features of the live image are also compared to facial features stored in the central database. A facial recognition system is to detect the image of a person and compares the detected image with the database image. It does this by comparing structure, shape, distance between the eyes, nose, mouth and…

1.0 QUESTION 1 Differentiate between database management system and information retrieval system by focusing on their functionalities. DATABASE MANAGEMENT SYSTEM INFORMATION RETRIEVAL SYSTEM DEFINITION A software system that enables the computer to do the database functions such as storing, retrieving, adding, deleting, and modifying data A built-in user interface that carry the activity of obtaining information resource from a collection of information stored EXAMPLE Microsoft Access, MySQL,…

The Relational Database Framework The collection of information provides access to the network of the data-processing system. The representation consists vital information of real-time events. The objective requires managing personal cognizant comportment for integrating vital information. The standard utilizer and application (APP) program interface to a relational database is the Structured Query Language (SQL) (Codd, 2003-2016). The APP retrieves and supplies the information from the graph…

Forensic evidence has been around for centuries. Whether it is using things like fingerprints or soil samples, it has been a significant form of support to find and convict criminals. Only recently, though, has DNA analysis become a major part of the forensic evidence process. The goal of this paper is to discuss how DNA analysis can be applied to dental, hair, and blood evidence to solve crimes; also, the importance of an accurate and detailed chain of custody log will be shown. The standard…

2011). Some of the problems with the use of DNA is the possibilities of contamination by the mishandling of the sample, mixing up samples in the lab, this was created due to the backlog, and getting samples from a suspect who is not in any of the databases without violating his or her constitutional rights under the Fourth, Fifth, or Fourteenth Amendment (Dempsey & Forst, 2011).One of the biggest challenges in using DNA evidence is defending it in court against expert witnesses. The…

It was 1990 in Goldsboro, North Carolina where the phantom known by society as the Night Stalker had wandered around the streets brutally attacking elderly women. Raped and almost murdered, an elderly woman was attacked in March saved merely by her daughter’s early arrival. Materials had been left behind for the intention to burn the residence for the sheer reason to conceal the crime. Three months later, the same crime had been committed along with the attempt of murder of her husband. Before…

3- IT and Business managers should work together for removing any communication obstacles to have a successful communication going. (Gartenstein, 2012). By having a weekly meetings which will strengthen the communication more . 4- Interpersonal interaction between the IT and business departments should be improved in the meetings, as most of the time the business team feel that they are lost as then don’t understand the technical points, this can be achieved by train the IT team to improve…

that is supposed to support rapid query and response, ad hoc query, reporting and unplanned exploration and discovery. The row oriented database creates need of reorganization…