You may assume the followings:    • Each material item has one or more vendor. Each vendor may supply one or more.  items or may not supply any items.  • The unit price for a material item may vary from one vendor to another.  • The terms for a supplier are the same for all material items ordered from that supplier.     Please answer the following questions:  1. Draw a dependency diagram to show the functional dependencies in the relation.   2. Decompose the relation into a set of 1NF, 2NF & 3NF relations with each normal form dependency diagram

Q: You are working with a database that stores information about suppliers, parts and projects. The…

A: Ans:)  The queries for above parts are given below.

Q: Make the entity-relationship model in Luicdchart for the following case: In the company Tecno1818…

A: Entity Relationship model is used for data modeling to database. It defines the relationship between…

Q: By giving an example, define the following terms: A. Coding B. Relation and Relationship

A: Given data:-

Q: Develop a diagram that shows the functional dependencies in the SHIPMENT relation

A: To create a functional dependency diagram, functional dependence means that a dependency value from…

Q: Consider the following statements: (1) We can check if a functional dependency holds by examining a…

A: A functional dependency is a relationship between two attributes, typically between the PK and other…

Q: Describe three circumstances in which a substitute key for a relation's primary key should be…

A: Conditions for recommending a substitute key Three factors indicate that a surrogate key should be…

Q: Describe three circumstances in which a substitute key for a relation's primary key should be…

A: The question has been answered in step2

Q: Problem 1: A database for an online store has the following relational schema to keep track of…

A: A functional dependency in the setting of relational databases is a connection between two or more…

Q: Can instances of a relation (sample data)prove the existence of a functional dependency? Why or why…

A: Lets see the solution.

Q: Describe how you would deal with the relation type M:N using a practical example.

A: MANY-TO-MANY (M: N) RELATIONSHIP: Many-to-Many relationship refers to the relationship between two…

Q: 1. Total participation is where each entity participates in at least one relationship in the…

A: 1- True, Each entity in the entity set is involved in at least one relationship in a relationship…

Q: Consider the following relation for published books: BOOK (Book title, Author_name, Book type, List…

A:

Q: 2 Consider the following functional dependencies for the given relation. R={A, B, C, D, E, F) AB->CD…

A: Dear Student, The answer to your question is given below -

Q: Explain the concept of "functional dependency" and its significance in normalization.

A: The link between the characteristics (columns) of a table is described by the database design…

Q: You may assume the followings:    • Each material item has one or more vendor. Each vendor may…

A: To draw a dependency diagram and decompose the relation into a set of 3 NF relations, let's first…

Q: Consider the following relation: Computer_Repair(Comp_ID, Engineer ID, Date Assigned, Customer_name,…

A: In database design, it is crucial to ensure that relations are normalized to avoid anomalies such as…

Q: The bus ticketing report shown above displays snippet of the daily transactions. Based on this…

A: The given table is a dataset that stores the route, ticket, customer and travel dates for a bus…

Q: LGCUSTCMER LGBRAND PK Cust Code PK Brand ID Cust Fname Cust Lname Cust Street Cust City Cust State…

A: Although Second Normal Form (2NF) relations have less repetition than those in 1NF, they might in…

Q: Consider the relation T, with key and functional dependencies shown below. I. What Normal form is T…

A: Given: T( j, k, l, m, n, o ) Key:   j, k FD1:   j, k -> l, m, n, o FD2:   k -> l, m FD3:   n…

Q: In the following, assume that A = {a,b,c,d} and that R : A ↔ A. Determine whether each relation is…

A: These are the some important term which are used to derive the following properties:-

Q: Based on the following functional dependencies, for the relation SCHEDULE bring it into a set of…

A: To bring the relation SCHEDULE into a set of 3NF relations, we need to identify the functional…

Q: Normalize the relation Q to 3NF. Q(A, B, C, D, E, F, G) Given the dependency: A -> B,C,D,E,F,G B->…

A: in the following section we will solve the above stated question.

Q: Consider a relation (A, B, C, D, E, F, G) with functional dependencies as given below: ABC D ED-F…

A: Consider the following relation with set of functional dependencies: R (A, B, C, D, E, F, G)…

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: Question 10. Consider the relation R (ABCDE) and functional dependencies set {A highest normal form…

A: Steps to find highest normal form of relation: Find all possible candidate keys of the relation.…

Q: Give two examples of a relation and their candidate key

A: Candidate key :                          A candidate key is a set of characteristics that uniquely…

Q: Suppose you have a Relation that has an atomic Primary Key and noRepeating Groups. All non-key…

A: According to the details provided about the relation, the relation is in 2NF. This relation has to…

Q: 1) Consider the relation T, with key and functional dependencies shown below. I. What Normal form is…

A: Keys :   In a database management system, a key is an attribute, or group of attributes, that aids…

Q: Given the relation R(C, D, E, F) and functional dependency: C-> DF Which of the following functional…

A: Answer to the above question is in step2.

Q: Regional Labs is a company that conducts research and development work on a contract basis for other…

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Q: hich of the following functional dependencies are satisfied (and not satisfied) by this relation and…

A: functional dependency in DBMS.

Q: Consider a relation with schema R(A,B,C,D,E,F,G). Choose the key for the relation for the following…

A: According to the question we need to consider a relationship with schema R(A, B, C, D, E, F, G).…

Q: Consider the relation sec course, which is the result of a many-to-one connection set sec course. Do…

A: Foreign keys are columns or groups of columns in a relational database table that serve as a…

Q: LGCUSTCMER LGBRAND PK Cust Code PK Brand ID Cust Fname Cust Lname Cust Sreet Cust City Cust_State…

A: All relations in 3NF, and all PK,FK are shown in dependency diagram as below :

Q: 1. Consider the relation schema which records student grades received from courses they have taken…

A: Candidate key: - It is a collection of attributes that recognize rows in a table in a unique way. It…

Q: Which of the following functional dependencies are satisfied (and not satisfied) by this relation…

A: (a) A → B False why ?? because you can't able to identify the value of B uniquely using A because…

Q: Question 2. Find a set of FDs for the relation schema R(w, X, y, z) with primary key "wx" under…

A: A set of Fd's for the relation schema R(w,x,y,z) with a primary key "WX" under R is in 2nf but not…

Q: Given a relation with underlined key attributes as below A B 1 7 9. 2 7 10 11 4 8 11 5 7 10 •…

A: All functional dependencies from the given relation is A -> B A-> C C -> B The given…

Q: Consider the following relation with functional dependencies as shown below. R{sno, sname, age,…

A: Answer to the given question: choice(a) First Normal Form The given relation will be in first normal…

Q: Consider a relation (p, q, r, s, t, u, v) with functional dependencies as given below: p➜q r➜s,t…

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Q: How does the primary key of a relation relate to the interdependencies among its other attributes…

A: Answer: A primary key-foreign key relationship characterizes a one-to-numerous connection between…

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

Q: reate a dependency diagram based on this ERD.  Decompose the relation in the resulting dependency…

A: If  а  relаtiоn  is  in  3NF,  it  meаns  thаt  the  dаtаbаse  is  in  the  2NF  аnd  there  аre  nо…

Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.