You have an application domain that consists of Cities, Towns, and Neighborhoods. A City has a name, zip code, state, and a country. A Town has a name, zip code, state, and country. A Neighborhood has a name, coordinate, and population. Using a relational model, what are Students, Courses, and Sections called? Select one:
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You have an application domain that consists of Cities, Towns, and Neighborhoods. A City has a name, zip code, state, and a country. A Town has a name, zip code, state, and country. A Neighborhood has a name, coordinate, and population. Using a relational model, what are Students, Courses, and Sections called?
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- Task 1:Create a database Entity and Relationship Diagram (ERD) for the following application:Please include answer with detailed explanationKhair Application: The Application idea: It is a mobile application called (Khair) to help people. This assistance is moral, material. This assistance is also provided by good people in our community. Example to understand the Application idea more: For example, a person urgently needs a medical chair or bed and does not have the ability to purchase what he needs. The medical chair or bed is requested through the application, and whoever has what he requests initiates the request through the application’s messages and determines the meeting place. Application models (page): Login included: login registration login included: user name password New registration included: name E-mail Password phone number date National Identification Number Home page included: Request - applicant name - address - send message Messages list form included: list of…The relational schema shown below is part of a hospital database. The primary keys are highlighted in bold. Patient (patientNo, patName, patAddr, DOB)Ward (wardNo, wardName, wardType, noOfBeds)Contains (patientNo, wardNo, admissionDate)Drug (drugNo, drugName, costPerUnit)Prescribed (patientNo, drugNo, unitsPerDay, startDate, finishDate) for CONTAINS nad PRESCRIBED table , which one is primary key and how to create table ?Create a database Entity and Relationship Diagram (ERD) for the following application (Submitted An image of the Diagram By using Any Application:The Application idea: It is a mobile application called (Khair) to help people. This assistance is moral, material. This assistance is also provided by good people in our community. Example to understand the Application idea more: For example, a person urgently needs a medical chair or bed and does not have the ability to purchase what he needs. The medical chair or bed is requested through the application, and whoever has what he requests initiates the request through the application’s messages and determines the meeting place. Application models (page): Login included: login registration login included: user name password New registration included: name E-mail Password phone number date National Identification Number Home page included: Request - applicant name - address - send message Messages list form included: list of users Messager…
- Task 1:Create a database Entity and Relationship Diagram (ERD) for the following application (Submitted An image of the Diagram By using Any Application:Application: The Application idea: It is a mobile application called (Khair) to help people. This assistance is moral, material. This assistance is also provided by good people in our community. Example to understand the Application idea more: For example, a person urgently needs a medical chair or bed and does not have the ability to purchase what he needs. The medical chair or bed is requested through the application, and whoever has what he requests initiates the request through the application’s messages and determines the meeting place. Application models (page): Login included: login registration login included: user name password New registration included: name E-mail Password phone number date National Identification Number Home page included: Request - applicant name - address - send message Messages list form included: list…SQL DDL corresponding to this schema (i.e. the CREATE TABLE statements Database Schema:branch ( branch_name, branch_city, assets )customer ( ID, customer_name, customer_street, customer_city )loan ( loan_number, branch_name, amount )borrower ( ID, loan_number )account ( account_number, branch_name, balance )depositor ( ID, account_number )Problem Statement: You are the CTO of a startup based out of Arlington, VA that needs to setup a database to keep track of the details of the customers: last name, first name, customer ID, street address, customer star rating (a rating on a 1– 5 scale, with 5 being best, representing the type of customer) and phone number. It also needs to keep track ofsimilar information for suppliers as well (although instead of supplier first and last name, there will just be a suppliercompany name). The database should maintain the data on products that are offered. Information about whichproduct is offered by which supplier should also be maintained. Finally, which customers have purchased whichproducts should also be tracked (note that we are only interested in which customers bought which product, but notconcerned about the date or how many were bought). 1.1 Business Rules: Assumptions for the business model are as follows:•Only customers that have purchased one or more products will exist in…
- pls help me : Draw an ER diagram according to the following requirements:Database to manage daily medical examination and treatment in the hospital (not interested in treating inpatients):- The hospital has many doctors and nurses from different departments. Each doctor and nurse belongs to only one department- The patient when he comes to the doctor will be created a patient record if it is the first visit- Each visit will be made a medical record and assigned an initial clinic. Each visit is attended by a doctor and an assistant nurse.- The doctor may ask the patient to perform tests, x-rays, endoscopy, ....- After the results are available, the patient returns to the original clinic for the doctor to read the results and prescribe medicine if any- Patients can buy medicine in the hospital pharmacy or buy it outsideYou are to design a Hospital database. So before creating the database, your task is to draw the ER diagram based on the following data collected and analyzed: A hospital will have a name, unique id, multiple helpline numbers (one for doctor's appointment, one for ambulance, one for bill information and one for other services' info) and locations. A hospital may have more than one location as it may have different branches and each of the locations will have a building no., street address, road no. and city name. A patient will have a name, unique ID, may have more than one phone number, age, height, weight and symptoms. A patient takes an appointment in a hospital and the appointment date is recorded. A patient may have an attendant. An attendant will have his/her name, contact numbers and relationship with the patient as a record in the database. Due to the covid situation, the hospital authorities will only allow 1 attendant with 1 patient.Create ERD for Real-estate database: There are Many Cities in each State There are Many Zip Codes in each City Many Houses belong to each ZipCode Each House can be one of HouseTypes ( Town House, Residential, Condo, Single Family) Each House can be Sold multiple times. ( entity Sales
- The relational schema shown below is part of a hospital database. The primary keys are highlighted in bold. Patient (patientNo, patName, patAddr, DOB)Ward (wardNo, wardName, wardType, noOfBeds)Contains (patientNo, wardNo, admissionDate)Drug (drugNo, drugName, costPerUnit)Prescribed (patientNo, drugNo, unitsPerDay, startDate, finishDate) Formulate the following SQL statements: a) Find the names of all the patients being prescribed ‘Morphine’.b) What is the total cost of Morphine supplied to a patient called ‘John Smith’?c) For each ward that admitted more than 10 patients today, list the ward number, ward type and number of beds in each ward.Create a database Entity and Relationship Diagram (ERD) for the following applicationThe Application idea: It is a mobile application called (Khair) to help people. This assistance is moral, material. This assistance is also provided by good people in our community. Example to understand the Application idea more: For example, a person urgently needs a medical chair or bed and does not have the ability to purchase what he needs. The medical chair or bed is requested through the application, and whoever has what he requests initiates the request through the application’s messages and determines the meeting place. Application models (page): Login included: login registration login included: user name password New registration included: name E-mail Password phone number date National Identification Number Home page included: Request - applicant name - address - send message Messages list form included: list of users Messager Personal information form: It contains a list of the user's…The following four tables form part of a library database: • Book (isbn, title, author, genre, price) • Copy (copyId, isbn) • Loan (userId, copyId, loanDate, dueDate) • User (userId, name, address, email) Where: • Book contains details of books and isbn is the primary key• Copy contains details of individual copies of books and copyId is the primary key• Loan contains details of loans and (userId, copyId, loanDate) forms the primary key • User contains details of library users and userId is the primary key 3.1 Identify the primary in the above schema. 3.2 Identify the foreign keys in the above schema. 3.3 Draw an Entity relationship model (ER-model) for the above schema, including: • all attributes• correct notation for primary and foreign keys • relationships• multiplicities 3.4 Draw sample tables for the above relations, ensuring relational integrity rules are met. 3.5 Explain the Entity Integrity constraint with reference to the Book relation.