Computers and Technology, 24.10.2019 21:43 ashhleyjohnson
Problem 1 consider relation r(a, b, c, d, e) with the following functional dependencies. 1. a β b 2. e β a 3. ce β d 1. find the key(s) of r? show that the key(s) is/are minimal. 2. find a minimal basis or prove the current basis is minimal. 3. perform a bcnf decomposition of r to find a lossless-join dependency-preserving decomposition. 4. use the 3nf synthesis algorithm to find a lossless-join dependency-preserving decomposition of r into 3nf.
Answers: 2
Computers and Technology, 22.06.2019 18:40
Mariah was working on a multimedia presentation that included both video and audio files. the file was huge, and she wanted to send it to her coworker in another office. she needed to reduce the size of the file so that it could be transmitted faster. the utility she used to do this was
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Computers and Technology, 22.06.2019 23:30
For her science class, elaine is creating a presentation on weather in the united states. she wants to make the presentation beautiful and interesting by drawing simple cloud or wave shapes. which is the best way for elaine to draw these shapes?
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Computers and Technology, 23.06.2019 14:30
Open this link after reading about ana's situation. complete each sentence using the drop-downs. ana would need a minimum of ato work as a translator. according to job outlook information, the number of jobs for translators willin the future.
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Computers and Technology, 23.06.2019 22:00
Take a critical look at three gui applications you have usedβfor example, a spreadsheet, a word-processing program, and a game. describe how well each conforms to the gui design guidelines listed in this chapter.
Answers: 3
Problem 1 consider relation r(a, b, c, d, e) with the following functional dependencies. 1. a β b 2....
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