Derive the relations in unnormalized form (UNF), and normalize it from UNF to third normal form (3NF). Show all steps taken to normalize the relations and clearly state any assumptions made (if necessary).

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A: Surrogate key is unique key and also called as synthetic primary key. Surrogate key holds anonymous…

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Q: Map the following ER Model to the Relational Model.

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Q: Normalise the answer from Q.5.2 to third normal form (3NF), showing all steps with explanations. The…

A: Please check the step 2 for solution

Q: (6) What are the 2 properties we need to keep in mind while doing decompositions to achieve a…

A: 2 properties are : ✓Lossless Decomposition: If the information is not lost from the relation that is…

Q: Show that if a relation has no attribute that is functionally determined by all the other…

A: Introduction   Show that if a relation has no attribute that is functionally determined by all the…

Q: List three conditions that suggest a surrogate key should be created for the primary key of a…

A: To be determine: List three conditions that suggest a surrogate key should be created for the…

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A: Given the relation relation T with seven attributes ABCDEFG where AB is a composite primary key for…

Q: The decomposition of one relation say R into two relations is classified as a. functional…

A: c) binary decomposition

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Q: Demonstrate that if a relation contains no property that is functionally determined by all of the…

A: Introduction   Show that if a relation has no attribute that is functionally determined by all the…

Q: Determine if the above table is in 1NF, else obtain a 1NF relation without loss of information

A: A table is said to be in 1NF if each cell contains atomic values.

Q: f the same meaning, b

A: There are two methods of expressions as,

Q: Convert the following ER Model to Relation   Model

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Q: For the following relations El(ALA2A3,81) E2(61,82,83) EMCI,ALA2 E4(D1,D2.A1) a. Determine the P.K…

A: The answer for a and b is given below:

Q: Explain three scenarios in which a surrogate key for a relation's primary key should be generated.

A: Introduction Explain three scenarios in which a surrogate key for a relation's primary key should be…

Q: Transform the following E-R diagram into relations.

A: For 1:M relationship include primary key of entity whose participation is many into schema of other…

Q: Define the term normalization and functional dependency of 1nf,2nf,3nf as used in normalization

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Q: Exercise 8.1.3: Matrices and arrow diagrams for relations expressed as sets of pairs. Draw the…

A: Solution (b): Arrow Diagram: Matrix representation:

Q: Map the following ER diagram into relational schema showing foreign keys and primary keys. C1 is…

A: Entity_1(A1,A2,A3) here A1 is the primary key and A2 is a multivalued attribute. Entity_2(B1,B2,Q)…

Q: Consider the relations Student(name, Marks) and Teacher(ID, name, Salary) in which name is the…

A: Natural join joins two table based on common attribute.

Q: Transform an entity-relationship (E-R) diagraminto an equivalent set of well-structured(normalized)…

A: Lets see the solution.

Q: rence relation is defined as 1

A: Given:Solved using divide and conquer approach    nr=n-1r-1+n-1r Function  Xn,r  if  (r=0  or n=r)…

Q: If there are more than one possible candidate keys, provide some instances of relations that have…

A: A candidate key is set of keys which uniquely identifies records. It is possible to have multiple…

Q: Given the EER diagram above, map it to an equivalent relational model by using the steps in Chapter…

A: 1. Mapping of the regular entities : Selection of the string entities and the corresponding simple…

Q: Conversion of E-R diagram to relational schemaSchema is a correct translation of the E-R diagram…

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Q: Draw a relational schema based on this EER diagram.

A: Schema in database are three :Physical schema,Logical schema and view..Basically schema is…

Q: Convert any E-R diagram in a Relation.

A:

Q: nvert ER diagram to relation m

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Q: define UNIQUE and NON-UNIQUE indexes for relations.

A: Unique indexes are indexes that help maintain data integrity by ensuring that no two rows of data in…

Q: translate the following er diagram  1. normalize the relations to 3NF

A: Dear Student, The 3nf transformation is given below

Q: If relation A has 8 rows and 4 attributes and relation B has 4 rows and 4 attributes and the union…

A: Please check the step 2 for solution

Q: Explanation of three circumstances in which a surrogate key should be generated for the main key of…

A: Surrogate key: It is a key that does not have any contextual meaning but is used to identify the…

Q: Please do the normalisation for attached ERD in 1NF, 2NF, 3NF by showing the new table getting from…

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Q: to Relational

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Q: Discuss the alternative ways that normalization can be used to support database     design.…

A: Answer: There are so many alternative way to normalized databases design.

Q: Use the technique of normalization to validate the structure of your relational schema. Demonstrate…

A: Answer: We need to write the 3-Normal form with some examples. Hence we have explain in more details…

Q: Identify the reasons why this relation is not in 3NF.

A: Given:'   Identify the reasons why this relation is not in 3NF.

Q: Draw Relational Model Of Given Diagram.

A: In this step I am giving the relationship mapping :

Q: (b) Derive the relations in unnormalized form (UNF), and normalize it from UNF to third normal form…

A: Introduction of Normalization: In DBMS(Database Management System), normalization is the process to…

Q: Explanation of three circumstances in which a surrogate key should be established for the main key…

A: Introduction: An entity in the client's business or an object in the database that is not the…

Q: :One of the followings is NOT a step to transforming an ERD into normalized relations normalize the…

A: Answer is denormalize the relations .b

Q: Normalize following relation up to 3NF, perform all steps of conversion from 1NF to 3NF. Also put…

A: 1)First step is the 1NF form.1NF form is the entity which does not have any repetitive columns in…

Q: Questions A: How to determine FD’s hold in a relation? How to deduce all FD’s from a given set of…

A: Introduction: Let's say we have a relation R and a set of functional dependencies that hold in R,…