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Murrr4er [49]
3 years ago
11

What justification can you give for normalizing a database if the database will be updated only by the people who can be trusted

not to introduce inconsistencies in the data?
a. lack of redundancy may save the space and may improve update time.

b. ability to store dangling tuples.

c. both a. and b.

d. neither a. nor b.
Computers and Technology
1 answer:
kakasveta [241]3 years ago
3 0

Answer: C) Both a and b

Explanation:

 The main benefit of normalizing the database as it reduced the redundant data and due the lack of the redundant data, it saves lots of space in the database.

It also improve the update time in the database so it is easy to handle the database security in the system.

It is also has ability to store the dangling tuples so it can easily store all the information of the customer without introduce any inconsistencies in the database system.

Therefore, Option (C) is correct.

 

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For selection sort, you make sub arrays and find the smallest element placing it in the front and repeat until sorted.  This guarantees the final element will already be the greatest element, thus it is trivially sorted.

For Insertion sort, you use the initial element and compare it to the previous element and swap if the current is larger than the previous.  Using this sort, you will always perform n-1 comparisons where n is the total amount of elements in the array.  Thus, there are only 11 iterations for a 12 element array.

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