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: Create an E-R model for the following scenario. Show entity names, primary keys, attributes for each…

A: We need to create ER diagram for above case studies See below step for diagram.

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: Create an E-R model for the following scenario. Show entity names, primary keys, attributes for each…

A: According to the information given:- We have to follow the mentioned scenario in order to make the…

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

A: Lets see the solution.

Q: Computer science What is the relationship between the primary key of a relation and the…

A: The Answer is in step2

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: 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: Question 2:- he dependency diagram shown indicates that authors are paid royalties for each book…

A: Normalization : It is the process of reducing redundancy from the database. Redundancy leads to…

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: 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: relations are not physically sorted but both have an index on the attributes that are being merged,…

A: In this question we have to understand the term provided where when both relations are not…

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: Explain the relationship between the primary key of a relation and the functional dependencies that…

A: Introduction: A primary key is a database characteristic that uniquely identifies a record.

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…

A: SQL is a structured query language, it's is used to extract and manipulate the data from the table.…

Q: What are three signs that a surrogate key should be generated for the primary key of a relation…

A: A surrogate key is one that serves no practical or operational purpose. It's "artificial" and made…

Q: Please transform the following Entity-Relationship Schema (Diagram) into a Relational Schema. Please…

A: Here PNo and SSno are primary key.  The following are the entities : PROJECT, EMPLOYEE, ENGINEER The…

Q: Explain the connection between a relation's primary key and the functional dependencies that exist…

A: A primary key is an attribute that identifies a record in a database. It is used to filter data…

Q: List the relation’s superkey(s) List the relation’s candidate key(s) Explain the Entity integrity…

A: The given is a relation named Student which holds the attributes to store the details about a…

Q: A functional dependency between two (or more) nonprimary key attributes in a relation defines a…

A: Please give positive ratings for my efforts. Thanks.   ANSWER   If there are no functional…

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: 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…

A: Given : A relation (p, q, r, s, t, u, v) with functional dependencies as given below:p ⇒ qr ⇒ s, ts…

Q: OE-> E QUESTION 8 What is the type of relationship between Person and Club in this diagram? Person…

A: Note: Since the Question is multiple hence we are advised to do only one question. Question 8.…

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…

Q: under what three circumstances does it become necessary to generate a surrogate key in place of the…

A: This question comes from Database Management System which is a paper of Computer Science. Let's…

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…

Q: The dependency diagram below indicates that authors are paid royalties for each book that they write…

A: Dependencies diagrams for each database table: Table1: Create the database table with name of…

Q: Lab 3: Normalization Assignment: Problem #11 from Chapter #6. (Be sure to note that this is PROBLEM…

A: The relation schema for the table structure is given below, CHARTER (CHAR_TRIP, CHAR_DATE,…

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

A: Database Management:Database Management involves the organization, storage, retrieval, and…

Q: Below are three situations where a surrogate key could replace the relation's primary key.

A: - We need to talk about three situations where a surrogate key can replace a relations primary key.

Q: For developing our queries, we will be using the following relational schema: Student(SID, name,…

A: Q1.  Here we need to join relation Course and Offering and use selection operator to select only…

Q: Transform into relational model (relations). IMPORTANT: The diagram needed for the second part uses…

A: Er diagram stands for Entity relationship diagram which contains mainly three components that are…

Q: 2. For the following questions, please identify the candidate keys of the given relations. You need…

A: - We need to find the keys from the relations provided.   - Candidate keys are those minimal keys…

Q: Describe the concept of functional dependency and how it relates to normalization.

A: Functional Dependency is a concept in the realm of database management systems playing a role in…

Q: Consider a relation named as BOOK that contains data about the books in a library. BOOK relation was…

A: The given relation "BOOK" is not in BCNF (Boyce-Codd Normal Form) because it has dependencies where…

Q: Here we explain three cases when it makes sense to use a surrogate key in lieu of the relation's…

A: In certain scenarios, using a surrogate key instead of the main key of a relation can be a sensible…

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.