Question 1 Consider the ERD shown. produces MANUFACTURER invoices purchases CUSTOMER (a) Write a narrative description of the objects and relationships. (b) How many invoices can exist between an instance of manufacturer and an instance of customer? (c) How many products can a customer purchase in one instance of the purchases relationship? PRODUCT

Q: A primary key of another entity as an attribute of an entity creates: A Parent-Child connection…

A: A primary key is unique key which can't be null. There can be only one primary key in one table.…

Q: Using any diagramming software, create an ER Diagram for the following:  A database is being…

A: INTRODUCTION: Entity Relationship Diagram, or ER Diagram for short, is a diagram that shows the…

Q: Develop ERD (Entity Relationship Diagram) for one of the following two scenarios. NOTE: No further…

A: Answer: We have drawn the the Entity relation diagram  for the one of the following so we have done…

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

A: Given data:-

Q: 2.Given the following database in Figure 1 Employee(ssn:int,name:string.jobTitle:string)…

A: Entity Relationship Diagram (ERD) or Entity Relationship Diagram (ERD) is a diagram that shows the…

Q: Q1. ER Model . Create an ER Model for the following: A customer (eg. Tom) may (or may not) give…

A:

Q: et A be the students {Tom, Jim, Lisa, Mary}, B be the courses {C100, C200, C300, C400}, C be the…

A: Let A be the students {Tom, Jim, Lisa, Mary}, B be the courses {C100, C200,C300, C400}, C be the…

Q: Give an explanation of the entity-relationship model's operation.

A: Introduction: They are also known as the ERDs or ER Models, and they use a preset collection of…

Q: Which one is correct When transform the following ER diagram into a relational schema name manager…

A: employee is the relation and the remaining will be the attributes and relationship

Q: A candidate key is a characteristic possessed by a composite primary key. What is your response to…

A: The statement you provided is not accurate. A candidate key and a composite primary key are…

Q: WEEK 8 ASSIGNMENT   create a star schema for the Bob's Fixit Group Case Study  . The star schema…

A: Here we have given a star schema for the Bob's Fixit Group Case Study. you can find the solution in…

Q: Give an example of how attributes are used in a relationship model, and what the generic term for an…

A: Entities in the ER model contain characteristics that may be single-valued, multi-valued, composite,…

Q: Entities: 1. Shuttle Vehicle: • Attributes: Vehicle ID, Type, Capacity 2. Trip: Attributes: Trip ID,…

A: The Entity-Relationship Diagram (ERD) provides a visual representation of the database structure…

Q: Model the following use case using a sequence diagram: M1: The customer provided an order request to…

A: Please check the step 2 for solution of your question

Q: When an attribute of one entity type references another entity type's attribute, this means that: O…

A: The solution is given in the below step with explanation

Q: Following relation schema exists : EMPLOYEE (EMP_ID, EMP_NAME, DEPT, GRADE, SALARY, AGE, ADDRESS).…

A: Answer: Given  EMPLOYEE (EMP_ID, EMP_NAME, DEPT, GRADE, SALARY, AGE, ADDRESS). Functional dependency…

Q: Make a relational diagram with the following data: 1. Patient Entity: RUT (Primary Key): Integer…

A: In this question we have to understand about the given relation ships and design a relationship…

Q: Assume you are a database developer for a company. You were asked to design a database for a…

A: If we convert the given information into Entity Relationship Diagram, the entities present in the…

Q: gender birth-date age name name name hospital M patient buy M medicine 1 ID name cpr phonenum name…

A: Solution: Introduction:

Q: Draw an ER-diagram for the following relational schemes. (Hint: bed and wardrobe are both…

A: The Entity-Relationship (E-R) diagram for the given relational schemas is as follows,

Q: Explain the usage of attributes and the generic name for attribute in the relationship mode

A: I have provided answer in step2

Q: Many to many relationships (a non spcific relationship) are resolved into a pair of one-to-many…

A: Many to many relationships (a non spcific relationship) are resolved into a pair of one-to-many…

Q: If any of the following choices are applicable, please tick them. This model includes entities like…

A: This model includes entities like as customers and accounts; employees; checks; and transactions.…

Q: 13. An unnormalized table means that: a. it has repeating groups. b. it has partial and transitive…

A: Answer: (B) it has partial and transitive dependencies. A connection that contains recurring values…

Q: HOMEWORK #6 Consider the following flawed ER diagram representing clubs and their activities. ID…

A: Club (ID, name) Activity (date, time, description, building, room, capacity, sponsor) Room…

Q: Draw an ERD containing the Transaction and Item entities. When a transaction is made, the date…

A: Draw an ERD containing the Transaction and Item entities. When a transaction is made, the date…

Q: xplanation of the entity-relationship model's op

A: INTRODUCTION: In a given topic of knowledge, an entity-relationship model (or ER model) represents…

Q: The three main constructs of the entity-relationship modeling notation include each of the following…

A: The three main construct of ER modeling are attributes,entity and relationship..with all the three…

Q: 2. When a student's grade is changed, we need to record information on the teacher who changed the…

A: In this question we have to understand and explanation of how to record information on the teacher…

Q: e draw diagram. Dont copy that is repeatable.  I would downvote for copied content.

A: Here I'm giving you a picture of ER-Diagram which I've made according to your requirement and even…

Q: What kind of Entity instance would it be? REGISTRATION, COURSE, AND STUDENT A. Ali, Mohammed, and…

A: Introduction: An entity instance is a manifestation of an entity inside that category, as opposed to…

Q: Translate the following ER Diagram into relational model. Show different relations that will result…

A: Please find below the relational model for the ER diagram mentioned above: Newspaper (newsPaperID…