advantages and disadvantages of normalization. The process of normalization brings about organization to the database that it is applied to. Normalization makes everyone’s job easier due to the fact that it gets rid of as much useless data as possible. Repeated data is processed and simplified into single data. Repeated data‚ for example such as having someone named JOHN DOE in one table and the same person’s name JOHNNY M. DOE in another table. Modifying a table with as little data as possible
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First‚ disadvantage related to the loss of control over the outsourced operations stems from the reason that managing external resources requires special skills which is a combination of the skills of people and process management‚ contract management‚ and power compromise
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Advantages and Disadvantages of Wind-Generated Electricity A Renewable Non-Polluting Resource Wind energy is a free‚ renewable resource‚ so no matter how much is used today‚ there will still be the same supply in the future. Wind energy is also a source ofclean‚ non-polluting‚ electricity. Unlike conventional power plants‚ wind plants emit no air pollutants or greenhouse gases. According to the U.S. Department of Energy‚ in 1990‚ California’s wind power plants offset the emission of more than 2.5
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Advantages and Disadvantages of Internet The term internet has become the most recognized word for the young and the old. Everyone seems to know what internet is for and where to get it. The thing is‚ internet is the greatest invention of the 20th century for it holds all the information that human beings can possibly supply. With a click of button and keyboard strokes‚ we are connected to the world of information. However useful the internet is it still poses several risks and disadvantage which
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ADVANTAGES & DISADVANTAGES OF TOURISM Advantages 1. Tourism provides foreign exchange (US dollars) which allows: i) The government to pay bills such as: a) Allows government to pay foreign debt. b) Allows the Bahamian dollar to stay on par with the US dollar. c) Allows government to pay the thousands of persons employed in government their monthly salaries. d) Allows government to have money to do road works‚ school construction and all other governmental works. ii) Allows Bahamians
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Community Policing brings police and citizens together to prevent crime and solve neighborhood problems. With community policing‚ the emphasis is on stopping crime before it happens‚ not responding to calls for service after the crime occurs. Community policing gives citizens more control over the quality of life in their community. Community policing means police become part of the neighborhood. This helps police get a better sense of resident’s needs and helps residents to develop greater trust
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Advantages and disadvantages of sampling methods Type Description Advantages Disadvantages Stratified This requires one to be bias towards their data. For example‚ if you knew the proportion of pensioners in an area was 30% and you wanted to represent this in your sample you would ensure that pensioners’ answers only made up 30% of your sample. It can be used with random or systematic sampling‚ and with point‚ line or area techniques If the proportions of the sub-sets are known‚ it can generate
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reproduction. This includes analog-to-digital conversion (ADC)‚ digital-to-analog conversion (DAC)‚ storage‚ and transmission. In effect‚ the system commonly referred to as digital is in fact a discrete-time‚ discrete-level analog of a previous electrical analog. While modern systems can be quite subtle in their methods‚ the primary usefulness of a digital system is the ability to store‚ retrieve and transmit signals without any loss of quality. Audio – Audio is a form of multimedia that allows viewers
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The advantages and disadvantages of globalization Introduction: With the development of Internet‚ transportation and closer relationship between countries‚ nowadays we heard of “globalization” more frequently in the daily life. Different countries and the people from different places have more connection and communication with each other than before. This is a human social phenomenon. In this big world stage‚ more relation not only means more opportunities‚ but also more competition. To research
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find them useful. best wish‚ It is evident that the use of mobile phones (or has both positive and negative impacts)/ brings us many problems as well as benefits‚ and thus there is an opinion that the demerits/disadvantages brought by a mobile phone prevail over the merits/advantages. Personally‚ I disagree with this view (ambiguous‚ i am not clear what view you disagree with‚ the first sentence should be separated into two small ones.). On the one hand‚ a mobile phones poses have some negative
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