Data Warehouse
Computer has become one of great and comprehensive impact on human life in this days, and it is an important tool, the computer has become part of different areas of life . You find it at home, school, in the workplace, and in the markets, everywhere you go, and we know that the computer is only a machine, but with applications and matched by the latest raging terrible race caused by the information, and database technology revolution is only of the applications that were built on the basis of a computer. companies of all sizes are competing to develop information handling and management tools.
Database systems play an important role in our daily lives, and the need to be used in various fields of life in the present day are
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patient, provider, payer etc. Therefore data warehouse design presented in this paper can be utilized in any application related to medical claim processing. Data is in normalized form in operational database and it is required to be in de-normalized form in data warehouse, for efficiency and ease of data fetching. Another major difference between operational database and data warehouse is use of primary key. In operational database primary key is logical, IDs are generated with some logic (like Practice code appended with serial number to form a patient ID). While in data warehouse primary key is physical, i.e. an auto generated serial number which increments when new record is inserted, even if the same record is already present. Physical primary key is used in all dimension tables and fact tables of the data …show more content…
This not only will give present a broad example of use of spatial data warehouses in a domain but also would give an idea of the core concepts which are applied in each domain. Other research directions we would like to include going ahead would be 3 Dimensional spatial objects in terms of spatial data warehouses. 3 Dimensional queries on spatial data warehouses may be helpful in domains like urban planning and Disaster management. The topological relationships for 3 dimensional objects would include relationships like INSIDE,
A database management system, or DBMS, gives the user access to their data and helps them transform the data into information. Such database management systems include dBase, Paradox, IMS, and Oracle. These systems allow users to create, update, and extract information from their databases. Compared to a manual filing system, the biggest advantages to a computerized database system are speed, accuracy, and accessibility.
In 1977, Larry Ellison, Bob Miner, and Ed Oates founded System Development Laboratories. After being inspired by a research paper written in 1970 by an IBM researcher titled “A Relational Model of Data for Large Shared Data Banks” they decided to build a new type of database called a relational database system. The original project on the relational database system was for the government (Central Intelligence Agency) and was dubbed ‘Oracle.’ They thought this would be appropriate because the meaning of Oracle is source of wisdom.
The benefits of a data warehouse are that it provides decision making information, organized in a way that facilitates the types of access required for that purpose and supported by a wide range of software designed to work with it.
Computers; they are a part of or in millions of homes; they are an intricate part of just about every if not all successful businesses, the government, and the military. Computers have become common place in today’s society and the lives of the people who live in it. They have crossed every national, racial, cultural, educational, and financial barrier, which consequently ushered in the information age. A computer is a programmable electronic device that can store, retrieve and process data, and they come in all shapes, and sizes. They can be used for and in just about anything. As stated before, they are used in just about every aspect of modern society. They are so fundamental to modern society that it would be disastrous to society without them. As stated before, there are many areas in modern society that are run by computers. They play an intricate part of millions of homes in the world. Office workers in business, government and the military may use them to write letters, keep rosters, create budgets, find information, manage projects, communicate with workers, and so on. They are used in education, medicine, music, law enforcement, and unfortunately crime. Because computers have become such a part of the world and how it operates, there is a tremendous responsibility for those who are in control of these computers and the vital information that they carry, to manage and protect them properly. This is management and protection is vital because any loss or damage could be disastrous for the affected entity. For example, a mistake or intentional alteration of a personal credit file could affect ones ability to buy a car or home, or can lead to legal actions against the affected person until the mistake or intentional alteration has been corrected. Therefore, with the advent of computers in the information age, and all of the intentional and unintentional violations against them, comes the need to safeguard them and the information they carry with strong systems and policies of computer security.
The main components of a data warehouse are the data source, data storage and the end users. The data is extracted from an external source and is passed through an ETL process, which converts the data into an output suitable for analysis. In order for this process to achieve the expected results the data staging process must be done correctly to ensure the needs of the organisation are met. By doing so the chances of a successful system are much higher.
Arguments in which data warehouse architecture is best among consultants and vendors never cease since each one of them claims that the architecture they use ...
Turban et al., (2011, p. 52) describes a data warehouse as being ‘a pool of data produced to support decision making; it is also a repository of current and historical data of potential interest to managers throughout the organisation’. Turban et al., (2011, p. 52) went on to state that ‘data are usually structured to be available in a form ready for analytical processing activities (i.e. data mining, querying, reporting and other support applications)’.
Databases are becoming as common in the workplace as the stapler. Businesses use databases to keep track of payroll, vacations, inventory, and a multitude of other taske of which are to vast to mention here. Basically businesses use databases anytime a large amount of data must be stored in such a manor that it can easily be searched, categorized and recalled in different means that can be easily read and understood by the end user. Databases are used extensively where I work. In fact, since Hyperion Solutions is a database and financial intelligence software developing company we produce one. To keep the material within scope I shall narrow the use of databases down to what we use just in the Orlando office of Hyperion Solutions alone.
The computer evolution has been an amazing one. There have been astonishing achievements in the computer industry, which dates back almost 2000 years. The earliest existence of the computer dates back to the first century, but the electronic computer has only been around for over a half-century. Throughout the last 40 years computers have changed drastically. They have greatly impacted the American lifestyle. A computer can be found in nearly every business and one out of every two households (Hall, 156). Our Society relies critically on computers for almost all of their daily operations and processes. Only once in a lifetime will a new invention like the computer come about.
System performance is one of the most critical issues faced by companies dealing with vast amounts of data. Companies use database systems and their applications to store, retrieve and handle this data.
If nineteenth century was an era of the Industrial revolution in Europe, I would say that computer and Information Technology have domineered since the twentieth century. The world today is a void without computers, be it healthcare, commerce or any other field, the industry won’t thrive without Information Technology and Computer Science. This ever-growing field of technology has aroused interest in me since my childhood.
There is a need for more computers in everyday life, in homes, schools and on the job. The advancement of computer technology today in all facets of the world, and life are growing to the point that everyone will need a computer to carry out their everyday life. Computer technology today is at the threshold of making life easier for everyone in the world.
aspect of our lives, we are faced with computers. They are in our classrooms, cars, and even used
In our world, people rely heavily on the power of technology every day. Kids are learning how to operate an iPad before they can even say their first word. School assignments have become virtual, making it possible to do anywhere in the world. We can receive information from across the world in less than a second with the touch of a button. Technology is a big part of our lives, and without it life just becomes a lot harder. Just like our phones have such an importance to us in our daily lives, database management systems are the same for businesses. Without this important software, it would be almost impossible for companies to complete simple daily tasks with such ease.
From classroom activities to space flight and everything in between, computers are a vital part of daily life. Everything we do and every aspect of our life is affected by modern technology, like the computers. Computers let us dissect any sort of data. Computers make us reflect, hence we develop. Because of computers and the Internet, we can talk with individuals from diverse nations, and even see them via webcams.