A data dictionary is a file that defines the basic organization of a database. A data dictionary has a list of all files in the database‚ the number of records that are in each file‚ the names and types of each field. The data dictionary is hidden from users so that it is not accidentally destroyed. The data dictionary only keeps bookkeeping information and does not actually contain any data from the database. The database management system cannot access data from the database without a data dictionary
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Learning in Schools Candidate name: LINDSAY PRESTON Candidate number............................................ Date | Links to | UNIT: ELEMENT: | P | K | 202.3.2 Describe the risks and possible consequences for children and young people using the internet‚ mobile phones and other technologies. Although the internet can be a valuable tool both educationally and socially‚ there are some serious risks associated with using the internet and other
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Drug testing? Insane‚ outrageous‚ and wasteful. The issue is whether or not welfare recipients should be drug tested and clean in order to receive funding. Because laboratory tests are often inaccurate‚ drug testing should not be required. To begin with‚ drug testing might be illegal search and seizure and might end up not saving money. First and foremost‚ “a law requiring drug tests would be unconstitutional. The US Constitution’s fourth amendment protects Americans against unreasonable searches
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Bruce A. Patterson 6 March 2015 PROFESSIONAL PUBLICATION MANUSCRIPT Education 798 Dr. Russ Yocum Learning for Life Abstract Learning for life is a life outlook where someone decides to seek personal improvement opportunities throughout their entire lifespan. There is always some area of knowledge or technology where additional or new information can be beneficial. Through the use of distance learning‚ conference attendance‚ and traditional classroom attendance‚ the learner can enjoy employment
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other animals are burned‚ blinded‚ cut open‚ poisoned‚ starved and drugged behind closed laboratory doors every year for convenience and economic reasons and because of old habits. Not only are animal tests extremely cruel‚ they are also completely inaccurate because of the vast physiological variations between species. Throughout the years of medical research‚ scientists have immorally exploited animals in the sense that they cannot decide for themselves. They have continually tested animals without
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Internet has become a household item for a decade. Some people find that nowhere can they find more useful information than in the experience of surfing the internet whereas others believe that what is transmitted on this system is not always reliable. I strongly agree with the former view for the following reasons First of all‚ it is argued that the floods of information posted on the Internet mislead users. With hundreds of advertising companies launching their campaigns about their products and
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and at times anonymous contributors. Unless an article is protected it can be edited by anyone. This can prove to be both beneficial and detrimental to users. This makes it more comprehensive and up to date. But it can also make it false or inaccurate if someone submits or edits in false information. An editor could do this knowingly or unknowingly. They
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What are the consequences of cutting down trees? There are many consequences for the environment of cutting down trees. Known as deforestation it has huge effects on the environment. It one very big effect is the loss of biodiversity which is a direct effect of cutting down trees. There are many reasons of which humans act out deforestation. For example is so that we can set up cattle farms. Also grow crops of which can then be sold to people. Another reason is for urbanisation and for the building
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World History Short Essay Assess the possible consequences of the Neolithic revolution on social structures. When talking about the Neolithic Revolution‚ we are referring to the time when food production‚ plant cultivation and animal domestication were developed (circa 11‚550 BP). It indicates the first cultural period in a region in which the first signs of domestication are present.[1] This can also be described as the shift from hunting and gathering societies to agricultural and pastoral
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concepts that can lead to inaccurate perceptions‚ cognitions‚ and conclusions of certain situations. Ideas such as the afterimage effect‚ availability heuristic‚ ethnocentrism‚ groupthink‚ the lack of object permanence‚ non-random assignment of research participants‚ optimistic explanatory style‚ and proactive interference are all subjects that tend to skew one’s original perspective or path. To start things off I will begin by discussing the afterimage effect. This effect is what occurs when your eyes
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