Answered: Question 3: Convert to Logical Data…

Question 3: Convert to Logical Data Modeling Ingredient Quantity Recipe Quantity INGREDIENT RECIPE RecipeNumber RecipeDesc RecipePrepTime IngredientNumber {IngredientDesc}

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Topic: Database Design and Entity Relationship Diagrams Please convert the following diagram to Crow's Foot notation.
If you sell a house more than once, it is treated as different "property" for each sale. Draw an entity-relationship diagram and write a database design outline. Q2. Law Office: You are trying to automate the records for your uncle's law firm. Multiple attorneys work for the firm, and for each of them you want to store their first name, last name, date hired, hourly billing rate, and date promoted to partner (blank if the attorney is not a partner). Each attorney has multiple cases, which is identified by a unique "docket number". Each case has a name and description, is worked on by only one attorney, and involves a single client. For each client, you want to store a first name, last name, middle name, phone number, address, city, state, and zip code (assume you do not have a zip-code table). Finally, you want to keep track of the billable hours spent on each case. For a single case, this comprises information that looks like Hours Billed Date 2/24/2005 Description Prepare brief…
What are the main characteristics of functional dependencies that are used for normalization?
Here is the database design for the personnel data: employee(id, name, address) employeeMap(id, confidentialId) empSalary(confidentialId, salary) The role 'Clerk' would be granted SELECT, UPDATE, DELETE to employee table and granted SELECT to empSalary table. While the clerk can see salary information for any statistical analysis (e.g. average salary computation), he has no idea which employee the salary is for. The role 'Administrator' is granted rights on all three tables; using the confidentialId in the employeeMap table, she has access to salary data for individual employees too. A SQL query that the administrator can use to access all employee fields is: select e.id, e.name, e.address, es.salary from employee e inner join employeeMap m on e.id = m.id inner join empSalary s on m.confidentialId = s.confidentialId; Can you draw a database schema?
Suppose that the initial conceptual design of the Car Rental database consisted of just a single relation as follows:Rental(VehicleID, CustomerID, DateOut(PK), DateReturned, VehicleClass, RentalRate, CustomerFName, CustomerLName, Balance) Normalize the Rental relation to 2NF and 3NF
Swing Jazz Club ERD Problem Follow the Simple Procedure for ERD diagramming to design an ERD using the following user provided information. Remember the ERD will eventually turn into the design for a database from a top down view. Make sure you resolve any many to many conflicts. Label an identifier or primary key and all pertinent attributes given. If an attribute is not readily apparent from the user information, then make one up that makes sense for the particular entity. Therefore, all entities should end up with at least an identifier and another attribute that makes sense. You may use any of the approaches shown by the book, though the ER-Model and Crow’s foot are the most common. Make sure you show entities, relationships, cardinality, and optionality. Swing Jazz Club The Swing Jazz Club teaches swing and jazz dancing and offers both private and group lessons. Swing Jazz charges $60 dollars per hour for a private lesson and $10 dollars per hour for a group lesson.…
Page - 1 DBMS - TASK 1: Draw an ERD and Map it to relational schema. Please complete reading page 1 before going to page 2. In this task, you will be given a text that describes a company (in page 2). Each student should complete the steps below to fully solve the task Represent the company description as an ER-diagram, including all relevant constraints as the following steps: - Each student should download Lucidchart app Every student should use Lucidchart to draw the ERD Edit Lucidchart Blank diagram Select View Insert Arrange Help 80 What's New Saved Start a free trial to access unlimited shapes and documents! X BIUAT- 2 px None None 408 Liberation Sans ▾ 10 pt + Shapes O Standard × T Flowchart 000 ☐ ODOT ☐ ☐ ☐ ☐ ☐☐ )>0 × TU Xx 14 << ΔΟ ▼ Shapes ΠΑ ☐ ☐ Name B Present MA when you create After each entity ID print screen, your name include your user ID should be shown university ID number Department 0190334 Dep_ID Employee 0190334 Name
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: a. Attributes b. Constraints c. Entities d. Relations
For the purpose of illustrating the structure of a database, either an E-R diagram or DBDL may be used. If that's the case, which strategy do you favor, and why?
It's possible to represent database structure using E-R diagrams or DBDLs. What makes your approach the one you favor the most?