Essays on Data Analysis

Travel Agent Report Examples

Table of Contents

An information system is one of the most important facilities that an organization needs to have. The information system helps in the accomplishments of tasks with minimal supervision and improved accuracy. An information system needs to be planned well and properly designed so that it can achieve the functions assigned to it. An elaborate information system has several components that should be able to work together so as to achieve the desired functionalities. The components of an information system usually vary depending on the nature of operations that the system is supposed to cover/handle (Beynon, 2004). The travel agent

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9 Pages

Un-normalized Form Unf Essay Sample

This is the first table drawn from the data source for normalization. That is, it contains raw data as it is from the source where gotten from

Student_ID

phone
email
Street_Number
Street_Name
state

Course_ID
Course_Title

First Normal form (1NF)
This begins the redesigning of the table to meet the requirements of the normalisation. It involves identification of repeating groups and also the identification of the primary key. As in the case of the student information table, the primary key is student ID and in course information table Course_ID becomes the primary key.

Student_ID

phone
email
Street_Number
Street_Name
state

Course_ID
Course_Title

Second

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3 Pages

Multiuser Sql Database Research Paper Examples

Which multi-user database will be capable of handling the needs of Centre for Disease Control (CDC)?

Databases are very important and essential in any organization. They help a company or an institution to maintain their records in a more organized form. SQL database system is very useful in managing and maintaining the records about a particular event of institution. Center for Disease Control (CDC) has a very elaborate and an all inclusive database management system that handled data and information pertaining to millions of disease causing organisms and their remedies. The company needs a very strong multi-user database system that can be able to handle the new disease species that are being discovered and also

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Cloud Computing

7 Pages

Case Study On Database Implementation

Customer Information Table

This is normalization of customer information and customer check_out tables to their third normal form. Normalization is an important concept in database construction since it helps in reduction of redundancy and anomalies in tables. From the two tables, it is clear that they are in their third normal form. It all starts with taking all the data attribute to unnormalized form as it is from the presented information.
It is from the unnormalised form that data gets invest to first normal form. This serves to identify all repeating groups and eliminate them.

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3 Pages

Qualities Of A Database Administrator Report Examples

Introduction

Computers/Information Systems (CIS) is an academic professional that bridges the gap between business fields with computer science. This field involves the use of computers for carrying out several computational activities. It also involves the studying of computers and algorithmic applications and their impacts in the society. In this study, we are going to consider a career that deals with computers or the CIS in general. There are several careers that a person can pursue with the use of computers. We are specifically going to consider database administration as a career and take an insight overview of the tasks involved

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3 Pages

Free Case Study On The Worst Data Theft Ever

1. At Hannaford, the credit card data theft was conducted through SQL injection attacks, or a series of steps, which used the vulnerability of databases in order to pass an untrusted SQL command (Peikari, and Chuvakin 377-378). The SQL injection attacks were well-known to the retailers, however Hannaford did not consider this threat and continued using their old SQL database management system. This fact eventually made the company an easy target for the data thieves. Moreover, weak security control of the company’s wireless network allowed the thieves to introduce sniffer programs, which could intercept card numbers with their

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2 Pages

Book Review On Select Firstname Departmentid Salary From Employees

Introduction to PL/SQL

Introduction to PL/SQL
PL/SQL stands for Procedural Language which is an extension to SQL. This is the standard data access language that is used by Oracle in relational databases. It ensures that procedural constructs are integrated seamlessly into SQL. Structured Query Language is the language that is commonly used in relational databases to gain access and modify data. One limitation of SQL is when there is need to have data with some conditions. An example is given below:
PL/SQL defines a block that is used for writing code. The block becomes easier to manage and maintain. With PL/SQL, modern

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1 Page

Persuasive Presentation Essay

In the Canadian health care system, the need for accountability and accurate record-keeping is key. With that in mind, an effective electronic medical records system must be implemented; it could mean the difference between life and death. The electronic health record (EHR) is a relatively new science, but an exciting one, and this presentation is meant to state the many advantages of implementing an EHR structure in the Canadian health care system.

EHR Defined

EHR is defined as a systematic database in which all patients and populations have their medical histories and records, providing a comprehensive, universal database that is easy

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2 Pages

Car Dealership Research Paper Example

Scenario A – Car Dealership

Executive summary
Database management system is a very important aspect in the setting of any organization. It helps different companies to be able to gather information about their employees, stock and the operations of the activities conducted by the organization (Beynon, 2004). The database being designed here is for a car dealer and should be able to form an avenue for communication between the customers, the suppliers and the managers. The database to be designed should also be able to contain information about the different types of cars being stocked by the company and also be used by the

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9 Pages

Web Servers Usually Require Server-side Scripting Engines These Scripts Are Some Case Study

Q11. List and discuss 5 areas where threats to data security may occur.
i. The operating system
Hackers may check whether a given operating system has its defult settings intact. Once they realise that the operator has not changed any of the settings, they will find it very easy to launch an attack. A hacker may therefore use the vulnerable OS to transmit sensitive data to some third parties or perform some functions in the system that can easily compromise the security of the data.
ii. Web server
They are responsible for running services that gather user requests and

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3 Pages

Free Essay On Path Of Pc Technician

Number:

PC technician

PC technicians are people who deal with computer repairs and ensure that the computers are in good working conditions. Their tasks range from computer repair to troubleshooting computer networks. The work of computer technicians are becoming common and increasing by the day. With computer gadgets being created by the day, many tasks of computer technicians increase. Computer technicians not only deal with hardware problems, they are also supposed to be able to handle software issues. When an information system is deployed in an organization, it will be required that that information system will undergo repairs and support. The support

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Professionalism

2 Pages

Example Of Data Access Control Models Research Paper

Number:

Access control models

Access control models are the mechanisms that are used to regulate the access of users to a computer system or information systems. This paper will discuss three access models and discuss the environments in which they best operate in.
The first access model is the role based access control (RBAC). This access control model does not have a specific environment in which it operates. This is to say that it can be implemented in an operating system, application level or network level, or in database level. The privileges that are users have on the network depend on the role

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1 Page

Database Backup Approach Course Work

Number;

Database backup approach

Backup is a very important task that many organizations undertake. There are different approaches that data backup can take which include full, incremental and differential approaches. For a single site university, as a database administrator, I would ensure that the beginning of every semester, I will perform a full backup. I will make sure that all the files and folders that are used in the university are backed up. The finance departments will have to have a daily backup using the differential backup approach. This will ensure that the financial transactions that take place in

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1 Page

Database Design Case Study

What additional kinds of information do you need for the physical database design besides the 3 NF relations developed earlier on?

Apart from the 3 NF relations, the following sets of additional information are required:
i. The definition of each attribute used in the database design
ii. Descriptions of the places where data are used and how often the different forms of data manipulation are conducted.
iii. The expectations and the requirements for data security to ensure retention and data integrity.
iv. A detailed description of the technologies which are used to implement the data.
What different

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3 Pages

PICO Worksheet And Search Strategy Research Paper

1. Define your question using PICO: Patient/Problem, Intervention, Comparison, and Outcome.

Patient/Problem: Children and young people under 19 years old who have nocturnal enuresis (bedwetting). Sub group to include patients with Special needs (learning disabilities, emotional and ADHD)

Intervention: Parent’s choice bed wetting Alarm alone (body worn, bed, vibrating, wireless, voice recorded, multi-tone, bell and pad)

Comparison: Choice compared to clinician’s choice: Treatment with medication desmopressin an ant diuretic hormone or arginine vasopressin
Outcome: Reduction/change in number of wet nights, Dry for 14 consecutive nights, Dry for 6 consecutive months (continuing success), Dry for 2 consecutive years,

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1 Page

Query Optimization In Databases Term Paper

Rule discovery

Every database administrator needs to uncover new information concerning the data relations and database relations. Rule discovery therefore is the name given to this process. Rule discovery is defined as the search for patterns, regularities and correlations in the target database by utilizing every available information source (Shneiderman, & Goodman, 2006). By the realization of these relations and regularities, application of optimization queries becomes much easier in the process. A clear and a better outcome will be realized as compared to a situation where the knowledge of the rules in question is not known.

In the past, researchers

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5 Pages

Query Optimization In Databases Term Paper

Query optimizer architecture

Given a database and a query on it, there a number of processes through which the query is run through with all the processes having different execution plans. In the optimization process the best plan is selected after careful consideration of all the option plans available.
Query optimizer architectural definition gives a better understanding of the tests that are done on the alternatives give (Epstein, 2008). Below is a simple architectural view of the query optimization process.

In the simple architecture

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2 Pages

Intranet Database System For Patients Information Thesis Proposal

Introduction

Increasing costs of health care services in the US require some measures to be undertaken in order to control these costs by lowering costs of prescription drugs, high premiums for health insurance policy and misuse of Medicaid /Medicare services. Federal government has taken initiatives to cut down its spending on public health care expenditures through programs such as health care reform bill which was enacted last (Flowers, 2010). Thus individuals and health care organizations, both governmental and non-governmental, have to work with constrained budget due to reduced funding by the federal government. This is not an easy task

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6 Pages

Term Paper On Problem

Envisage a situation in which you are standing facing a delicate buffet overflowing with several delicacies. The objective is to try all of them out, however you must make a decision on what sequence and what substitute of flavors will make the most of the general delight of your appetite. Even though much less satisfying and prejudiced, these are the forms of difficulties that query optimizers are required to resolve. Provided a query, there are numerous schemes that a DBMS can pursue to process it and create its response. All plans are equal in the basis of their ultimate

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1 Page

Query Optimization In Database Systems Term Paper

The query optimization problem

Lack of precise statistical information about the database hampers greatly the optimization of queries in database systems (Raghu, & Johannes, 2003). Good algorithms have to be applied in the process of query optimization if success is to be achieved in a greater manner (Walker, 2007).
In this paper, we define a query as a kind of language expression used to describe data elements to be retrieved in the database (Garcia-Molina, Ullhman, & Widom, 2004). Application of queries is done in many different settings. In many cases, users send direct requests to the databases in order to get

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3 Pages