Why there is need of normalization? Illustrate with an example.

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Why there is need of normalization? Illustrate with an example.

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SUMIT2552

Asked: October 30, 2021In: DBMS

Given relation R (A,B,C,D) and the following FD’s. Identify the candidate key for R and highest normal form B->C, D->A

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assignment

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SUMIT2552

Asked: October 30, 2021In: DBMS

We cannot guarantee that BCNF relation schema will be produced by dependency preserving decomposition of non-BCNF relation schema. Give the counter example to illustrate this point

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We cannot guarantee that BCNF relation schema will be produced by dependency preserving decomposition of non-BCNF relation schema. Give the counter example to illustrate this point

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Ayana

Asked: October 30, 2021In: DBMS

Consider the universal relation R= {A,B,C,D,E,F,G,H,I,J} and a set of functional dependencies F= { {AB→ C}, { A → DE}, { B→ F}, {F→ GH}, {D→ IJ}}. What is the key for R? Decompose R into 2NF, then 3NF relations.

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Consider the universal relation R= {A,B,C,D,E,F,G,H,I,J} and a set of functional dependencies F= { {AB→ C}, { A → DE}, { B→ F}, {F→ GH}, {D→ IJ}}. What is the key for R? Decompose R into 2NF, then 3NF relations.

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Berlin

Asked: October 28, 2021In: Programming Language

Create an interface and design a class to implement an interface.

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Create an interface and design a class to implement an interface.

1

Ayana

Asked: October 28, 2021In: Data Structure

Write a program that determines whether an input string is a palindrome; that is, whether it can be read the same way forward and backward. At each point, you can read only one character of the input string; do not use an array to first store this string and then analyze it (except, possibly, in a stack implementation). Consider using multiple stacks.

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DS Assignment – 2

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Why there is need of normalization? Illustrate with an example.

Given relation R (A,B,C,D) and the following FD’s. Identify the candidate key for R and highest normal form B->C, D->A

We cannot guarantee that BCNF relation schema will be produced by dependency preserving decomposition of non-BCNF relation schema. Give the counter example to illustrate this point

Consider the universal relation R= {A,B,C,D,E,F,G,H,I,J} and a set of functional dependencies F= { {AB→ C}, { A → DE}, { B→ F}, {F→ GH}, {D→ IJ}}. What is the key for R? Decompose R into 2NF, then 3NF relations.

Create an interface and design a class to implement an interface.