LOGICAL DATABASE DESIGN. The above EER-Diagram represents a Health Club Membership account that has two types of memberships (see Figure 4). A member can hire trainer if they wish so. Derive relations for logical model from the above EER-Diagram. Please identify any primary key or foreign key in the derive relations (if applicable).
Q: Discuss each of the following concepts in the context of the relational data model: tuple…
A: Here is the solution:
Q: Model each of the following constructs inanE-R diagram: composite attribute,multivalued attribute,…
A: Model each of the following constructs inanE-R diagram: composite attribute,multivalued attribute,…
Q: Design a Relational Database by Mapping the following Entity-Relationship Diagram (ERD) into…
A:
Q: Given the following EER diagram, write down the corresponding relations using the method taught in…
A: The answer is
Q: Question1: Consider the Entity Relational (ER) schema of relation R= (A, B, C, D, E(E1, E2));…
A: Since this question has multiple subparts we will answer only three. If you want any specific…
Q: Question: Consider the relation: R(A, B, C, D, E, F, G, H, I, J, K, L,M,N,O,P,Q), {A, B} is the…
A: R(A, B, C, D, E, F, G, H, I, J, K, L,M,N,O,P,Q) Candidate key: {A, B}, {C,D,E}Prime attributes Non…
Q: Draw relational database schema as asked Q4. Consider the EER diagram for car dealer database in…
A:
Q: Can cardinality between individuals be translated/read from both ends of the notation while dealing…
A: The answer to your question Can cardinality between individuals be translated/read from both ends is…
Q: Extract and write down the DB Schema for the following E-R Diagram. You need to write the name,…
A: Terminology used in this E-R diagram:
Q: Which one is correct Consider the following ER diagram depicting the relationship of an employee and…
A: To Do: To choose the correct option.
Q: Figure 2 shows an ER schema for a database that may be used to keep track of Pizza ordering system.…
A: Answer in step2 Note--since in E-R diagram cannot show foreign key so we are giving possible foreign…
Q: ID library_item title N publishes magazines journal conference_proceeding book publisher date_of…
A: Primary key attributes- magazines- date of publish, date, id journal-volume, number, id book -…
Q: Map the relational schema of Figure 6.14 into an ER schema. This is part of a process known as…
A: the answer is an given below :
Q: Fix the following ER diagram of an Online Anime Store by including the description of the entities,…
A: The answer for the given question is as follows.
Q: 1- Mapping this ER diagram to Relational Model diagram 2- Normalization of the relation scheme (1NF,…
A: Given ER diagram contain many entities and attributes. In conversion of ER diagram to Relational…
Q: Consider the Musician database ER diagram as shown in Figure Give the FDs for the constraints in the…
A: The Answer is
Q: lame the THREE (3) components that are considered to be part of any data Comment on the extent to…
A: Lets see the solution.
Q: Consider a database used to record the marks that students get in different exams of different…
A: Considered the following attributes to draw the ER diagram: The entities are listed below: student…
Q: Analysis of relational schemas and normalization Consider the following conceptual schema of a…
A: A constraint that establishes the relationship between two sets of attributes in which one set may…
Q: Describe the most common way in which relationships in an E-R diagram are expresses in a…
A: ER diagram ER diagram is defined as the interconnection of entities and attributes how they are…
Q: 1. Given the following schema for the employee relation: Employee-schema = (SSN, first_name,…
A: Given employee relation contains 7 attributes. Given that, two people with same first_name and…
Q: Construct an ER Diagram from the following case study A new established company database needs to…
A: Lets see the solution.
Q: After mapping the following ER diagram to relational schema, attribute #_employees: * . supplier…
A: In the given ER diagram, #_employees is an attribute for Branch entity.
Q: Consider a database that includes the entity sets student, course, and section from the university…
A: The database is the collection of data and information in the organization’s school or college. The…
Q: Draw a DataBase Model of your choice then explain how this model relate to every entities
A: Given: Using the figure below. Draw a DataBase Model of your choice then explain how this model…
Q: OGICAL DATABASE DESIGN The above EER-Diagram represents a University Library Membership (see…
A: The given problem is related to database modeling where the Enhanced Entity Relationship model is…
Q: Give an SQL schema definition for the employee database of Figure 3.19.Choose an appropriate domain…
A: Given: Give an SQL schema definition for the employee database of Figure 3.19.Choose an appropriate…
Q: nnections be retained if a relation is transformed into a temporal relation by adding a time…
A: Will functional connections be retained if a relation is transformed into a temporal relation by…
Q: Multiple choices. Circle (or indicate) the correct (or the best) answer. You should choose only one…
A: 1) p, b, c, e [underlined attributes indicate schema of the relation] 2) (d) Schema
Q: Given the following Entity-Relationship diagram Address wirkwing 9 na pr mam quran BASED IN (LN)…
A: It helps to convert conceptual data model into a set of standard relationships Steps: Represent…
Q: Analysis of relational schemas and normalization Consider the following conceptual schema of a…
A: Table name Minimal key CUSTOMER custPhone KTVSTUDIO studioName BOOKING…
Q: In Entity-relationship modelling what is the mapping for the following: Bookshops may have more…
A: The solution to the given problem is below. ***Note: According to Bartleby policy we are not…
Q: Can cardinality between individuals be translated/read from both ends of the notation while dealing…
A: Cardinality: Cardinality refers to the maximum or minimal number of elements that may be included on…
Q: Create ERDs for the following cases. • Identify entities, identifier and attributes for each entity,…
A: Solution: Entity and its attributes: Course CourseID CourseName Section SectionID…
Q: 02: Construct an E-R or UML diagram for the following SALES COMPANY database which has network of…
A: ER diagram Entities: Customer(cusNo,cusname,SPNO,HQcity) Employee(Eno,Custno,Empname,title)…
Q: Consider a database used to record the marks that students get in different exams ofdifferent course…
A: According to question : Considered the following attributes to draw the ER diagram: The entities…
Q: A database designer applied a process of logical design, and he/she transformed the conceptual…
A: Functional dependency is the relationship between properties. That is when one property defines…
Q: Give an SQL schema definition for the employee database of Figure 3.19.Choose an appropriate domain…
A: Data Definition Language (DDL): It is used for creating tables and other structures. They perform…
Q: Exercise 4-2, Figure 4-24 shows a possible data model for cocktail recipes. The Many–Many…
A: Below is the answer:
Q: Q. 1 Consider a university database for the scheduling of classrooms for final exams. This database…
A: The database management system is a collection of data and information and SQL languages are used…
Q: Produce a relational schema diagram that corresponds to the linked ER diagram for a database for the…
A: The given is a database problem where the relational database is to be created based on the given…
Q: a) Consider the given schema. Instructor(id, name, dept, address, age, phn_number) Student(s id,…
A: here we have given the hand written images of mapping cardinalities and normalized data upto 3nf
Q: Consider the following database schema for Players and contracts with different teams. Player (…
A: Question given - Table schemas are given of two database tables. These tables are already in 1NF.…
Q: Create ERDs for the following cases. • Identify entities, identifier and attributes for each entity,…
A: Solution: Entity and its attribute: Course CourseID CourseName Section SectionID…
Q: n. If an attribute is not readily apparent from the user information, then make one up that makes…
A: ERD using Cows foot notation No of entities: 1. Patient entity2. Ward entity3. Doctor entity4.…
Q: Consider the relation r(A, B, C), where the characteristic A serves as the index to the…
A: Consider the relation r(A,B,C), which has an index on the attribute "A."
Q: Consider the ER diagram for a Software Testing database below using UML class diagram symbols. Map…
A: The Answer is
LOGICAL
The above EER-Diagram represents a Health Club Membership account that has two types of memberships (see Figure 4). A member can hire trainer if they wish so. Derive relations for logical model from the above EER-Diagram. Please identify any primary key or foreign key in the derive relations (if applicable).
Step by step
Solved in 2 steps with 1 images
- Job portal system: This system allows the students to search and apply for jobs etc. online. The manager can use the system for posting and deleting job offers etc. 1.Create your own case study (problem statement) for the above application 2.Draw the use case diagram 3.Class diagram with at least 4 classes and explain all the relationships 4.Draw a DFD-0 for this applicationBelow is my RolePermission Model:@Entity@Getter@Setterpublic class RolePermission {@Id@GeneratedValue(strategy = GenerationType.SEQUENCE,generator = "Id")// @Column(name = "id", nullable = false)private Long id;//@ManyToOne(fetch = FetchType.LAZY,cascade = CascadeType.REMOVE)// @ManyToOne@JoinColumn(name = "roleId")@JsonIgnoreRole role;@ManyToOne(fetch = FetchType.LAZY,cascade = CascadeType.REMOVE)// @ManyToOne@JoinColumn(name = "permissionId")// @JoinColumn(name = "permissionId", referencedColumnName = "permission",// insertable = false,updatable = false)@LazyToOne(LazyToOneOption.NO_PROXY)@JsonIgnorePermission permission;@CreatedDate@CreationTimestamp@DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)LocalDateTime createdAt;@LastModifiedDate@UpdateTimestamp@DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)LocalDateTime updatedAt;}1.1 tblMembers The tblMembers will be used to store the details of the Gym Members MemberID, Name, Surname, DateOfBirth, ID,Contact, DateJoined MemberType (Annual: R200/year, Monthly: R50/month)1.2 The tblPayments table will be used to keep track of payments made by Members. PaymentID, Date, Amount. The tblPayments should be related to tblMembers accordinglyUsing Java and the jdbc API , create a startup frame that will be used navigate the application. The frame should have 3 buttons.1.3 The first button will open aa frame that can be used to add, update and delete Gyjm Members. 1.4 The second button will open a frame that will be used to collect the payments made by students.1.5 The third button will display a frame that calculates the current age and the balances, and displays a summary report in a table, as follows for an example:Order # is the sequence number of the member in tblMembers table. Should a member be deleted the system should adjust the sequence as well.- Age is the…
- A class named Person having A protected attribute name as string. A protected attribute cnic as int. A private attribute address as string A private attribute fatherName as string. A parametrized constructor that assigns provided values to all the attributes. A Teacher class that is-a Person as well, has A private attribute Id. A parametrized constructor that assigns Id, name, cnic, address, fatherName. (You should call super constructor to assign values for Person) A class named Course has A private attribute String courseName A private attribute Teacher teacher A private attribute double marks. (min: 0 and max 100) A private attribute int creditHours A private attribute char grade A private attribute double GPA A parameterized constructor to initialize attributes courseName, creditHours and marks, this constructor should also calculate grade and GPA, according to the grading policy defined in table below: Latter Grade Percentage Gpa A 80-100 4 B 70-75 3 C 60-69 2…Create a Sequence model (Application layer) for the following “Borrow Books” Use case for Students with a Valid ID and No Overdue Books or Fines from the Use-Case Description: Normal Flow of Events: 1. The Borrower brings books to the Librarian at the checkout desk. 2. The Borrower provides Librarian their ID card. 3. The Librarian checks the validity of the ID Card. If the Borrower is a Student Borrower, Validate ID Card against Registrar’s DB. If the Borrower is a Faculty/Staff Borrower, Validate ID Card against Personnel DB. If the Borrower is a Guest Borrower, Validate ID Card against Library’s Guest DB. 4. The Librarian checks whether the Borrower has any overdue books and/or fines. 5. The Borrower checks out the books. Alternate/Exceptional Flows: 4a. The ID Card is invalid, the book request is rejected. 5a. The Borrower either has overdue books, fines, or both, the book request is rejected.A multinational company hired you to develop their employee management system. There are many employees working in different positions and departments. Make a structure for each department telling the number of employees in that department including the heads. Also each position has a reporting head defined in the chart given below also state the reporting head in the employee structure. Make a structure for all the employees holding their bio – data which includes: Name Employee ID CNIC Phone Number Age Department Position Add more necessary variables as required. Create functions to perform these operations: Add Employee Modify Employee Delete Employee Print All Employee Display Details of all Employees Search Employee using Position Search Employee using Department Search Employee using Employee id
- A multinational company hired you to develop their employee management system. There are many employees working in different positions and departments. Make a structure for each department telling the number of employees in that department including the heads. Also each position has a reporting head defined in the chart given below also state the reporting head in the employee structure. Make a structure for all the employees holding their bio – data which includes: Name Employee ID CNIC Phone Number Age Department Position Add more necessary variables as required. Create functions to perform these operations: Add Employee Modify Employee Delete Employee Print All Employee Display Details of all Employees Search Employee using Position Search Employee using Department Search Employee using Employee id I want this program code in C language Please.A multinational company hired you to develop their employee management system. There are many employees working in different positions and departments. Make a structure for each department telling the number of employees in that department including the heads. Also each position has a reporting head defined in the chart given below also state the reporting head in the employee structure. Make a structure for all the employees holding their bio – data which includes: Name Employee ID CNIC Phone Number Age Department Position Add more necessary variables as required. Create functions to perform these operations: Add Employee Modify Employee Delete Employee Print All Employee Display Details of all Employees Search Employee using Position Search Employee using Department Search Employee using Employee id Using C LanguageMake the functions below according to the attached class diagram and GUI program mockup. No The function to be made 1 Create Transaction Order_ID = 1 Order_Date = 11-2-2021 Customer_ID = 2 Customer_RefNo = 001 / I / S / 2021 When the TextField 'txtCustomerID' is filled and we click the 'View' Button, then the TextField 'txtViewCustomerName' will display the 'Customer_Name' field from the Customer's Table according to the input Customer_ID. If the data is not found, a notification will appear “Customer not registered”. 2 Fill in the List Combo Box Product_ID by retrieving data from the Product Fied Table Product_ID 3 If the button ‘Tambah Item’ is clicked, then data from Product_ID, txtProduct_Name, txtQuantity, txtPrice will be saved to the 'Order Detail' Tabke (according to the mockup), then also enter the Sub Total field in the 'Order Detail' table with the calculation of txtQuantity * txtPrice. 4 When the ‘Hapus’ button is clicked, data from…
- Create a base class called Entity. The Entity class must hold the common attributes and behaviors from UML. Entity Class UML Entity -id: long -name: String -------------------------------- -Enity() +Entity(id: long, name: String) +getId(): long +getName(); String +toString(): String Complete the code for the Player and Team classes. Each class must derive from the Entity class. Refactor the Game class to inherit from this new Entity class. Every team and player must have a unique name by searching for the supplied name prior to adding the new instance. Use the iterator pattern in the addTeam() and addPlayer() methods. Code that I have, not sure if I have it correct. Thank you Entity Class package com.gamingroom; public class Entity {//Private attributesprivate long id;private String name;//Default constructorpublic Entity() { }//Constructor with an identifier and namepublic Entity(long id, String name) {this();this.id = id;this.name = name;} //@return the idpublic long getId() {return…8. In the following code below, the code selects an Employee object by primary key. However you are missing the line of code to create the employee variable. What line of code are you missing? [HttpGet] public IActionResult Edit(int id) { ViewBag.Action = "Edit"; ViewBag.Departments = context.Departments.OrderBy(d => d.DepartmentName).ToList(); ________________________________________________ return View(employee); } 1. var employee = id 2. var employee ="select * from Employee where Id = id"; 3. var employee = context.Employees.Find(id); 4. context.Employees.Find(id) = employee;4. When a view posts data, an action method can use the ______________ property of the controller class to check whether all values in the model are valid. 1. ModelState 2. Model 3. ValidationModel 4. ViewBag