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Third normal form (3NF) is a table that is already in 1NF and 2NF, and in which the values in all non-primary-key columns can be worked out from only the primary key (or candidate key) column(s) and no other columns.
kevowmuchiri answered the question on July 9, 2018 at 19:05
- Describe what is meant by full functional dependency and describe how this type of dependency relates to 2NF. Provide an example to illustrate your answer.(Solved)
Describe what is meant by full functional dependency and describe how this type of dependency relates to 2NF. Provide an example to illustrate your answer.
Date posted: July 9, 2018. Answers (1)
- Describe the characteristics of a table in second normal form (2NF).(Solved)
Describe the characteristics of a table in second normal form (2NF).
Date posted: July 9, 2018. Answers (1)
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Describe an approach to converting a first normal form (1NF) table to second normal form (2NF) table(s).
Date posted: July 9, 2018. Answers (1)
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Date posted: July 9, 2018. Answers (1)
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Describe the characteristics of a table that violates first normal form (1NF) and then describe how such a table is converted to 1NF.
Date posted: July 9, 2018. Answers (1)
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Describe the types of update anomalies that may occur on a table that has redundant data.
Date posted: July 9, 2018. Answers (1)
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Discuss how normalization may be used in database design.
Date posted: July 9, 2018. Answers (1)
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Describe how strong and weak entities differ and provide an example of each.
Date posted: July 7, 2018. Answers (1)
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Date posted: July 7, 2018. Answers (1)
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Describe what multiplicity represents for a relationship.
Date posted: July 7, 2018. Answers (1)
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What are business rules and how does multiplicity model these constraints?
Date posted: July 7, 2018. Answers (1)
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How does multiplicity represent both the cardinality and the participation constraints on a relationship?
Date posted: July 7, 2018. Answers (1)
- Perform addition and subtraction operation on the following two floating point operands. ...(Solved)
Perform addition and subtraction operation on the following two floating point operands.
A = 0 10001 011011
B = 1 01111 101010
A and B are represented in a 12-bit format. The scale factor has an implied base of 2 and a 5-bit excess-15 exponent. The 6-bit mantissa is normalized as in the IEEE format, with an implied 1 to the left of the binary point.
Date posted: July 7, 2018. Answers (1)
- Divide 14 by 3 using restoring and non restoring division. Show all the steps. No partial credit will be awarded unless all steps are shown.
(Solved)
Divide 14 by 3 using restoring and non restoring division. Show all the steps. No partial credit will be awarded unless all steps are shown.
Date posted: July 7, 2018. Answers (1)
- Multiply the following pair of signed 2’s complement numbers using the Booth algorithm. Assume A is the multiplicand and B is the multiplier. Show all...(Solved)
Multiply the following pair of signed 2’s complement numbers using the Booth algorithm. Assume A is the multiplicand and B is the multiplier. Show all the steps. No partial credit will be awarded unless all steps are shown.
A = 010111, B = 110110
Date posted: July 7, 2018. Answers (1)
- Convert the following numbers: (a) –347 into 2’s complement binary (b)243.124 into floating point form.(Solved)
1. Convert the following numbers:
(a) –347 into 2’s complement binary
(b) 243.124 into floating point form.
Date posted: July 7, 2018. Answers (1)
- Discuss the purpose of analyzing the transactions that have to be supported and describe the type of information you would collect and analyze.(Solved)
Discuss the purpose of analyzing the transactions that have to be supported and describe the type of information you would collect and analyze.
Date posted: July 4, 2018. Answers (1)
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Discuss some of the main reasons for selecting a column as a potential candidate for indexing. Give examples to illustrate your answer.
Date posted: July 4, 2018. Answers (1)
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When would you not add any indexes to a table?
Date posted: July 4, 2018. Answers (1)
- Having identified a column as a potential candidate, under what circumstances would you decide against indexing it? (Solved)
Having identified a column as a potential candidate, under what circumstances would you decide against indexing it?
Date posted: July 4, 2018. Answers (1)