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Technology
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| Number of pages / Number of words: |
3 / 707 |
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A primary key is used to define a relationship as well as uniquely identify each record in a table. Redundancy, which is defined as “the duplication of data or the storing of the same data in more than one place.†is greatly reduced in this model. (Pratt, 2004, p. 3) QBE (query by example) is also a part of most relational databases and makes access to the data much quicker than the old approach...
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(Pratt, 2004, p. 3) QBE (query by example) is also a part of most relational databases and makes access to the data much quicker than the old approach.
Object oriented programming approaches business logic in a very different way. The approach views a problem as an object. In general the code stays the same...
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