Consider the following relational schema for airline flight information: Flights (flight_no, source, destination, distance, departure, arrival) Aircraft (aid, aname, cruising_range) Certified (eid, aid) Employees (eid, ename, salary)

Q: Q3: From the mentioned below discuss which model is more suitable for storing data. And what are the…

A: Data models describe how a database's logical structure is represented. In a database management…

Q: Question 1: Consider the following relational database schema used to keep track of Ship cruise…

A: Since you have posted a question with multiple sub-parts, according to the company's policy we will…

Q: Question 1: Consider the following relational database schema used to keep track of Ship cruise…

A: NOTE : As per guidelines of the company, we are authorized to answer 3 sub-parts of the question.…

Q: QUESTION 3 Which of the following is True about Relational Database Modeling? O a. It is a physical…

A: True about the relational database and one to many relationship between customer and product table

Q: Consider the bank database schema shown below (see the textual description below). Assume that…

A: I'm providing the answer of the above question. I hope this will help.

Q: Consider the following relational database schema used to keep track of Ship cruise details and…

A: When there are multiple unrelated questions , we are supposed to answer the first question. In this…

Q: The following relational database schema stores information about a restaurant. The primary keys are…

A: Following are the query to the given question: Following are the Stored Procedure to the question:

Q: The following relational database schema stores information about a restaurant. The primary keys are…

A: SELECT      ename      FROM employee WHERE     eage > 30 and ((SELECT max(salary) FROM…

Q: Create tables based on the below given relational model. Define your own data type to the attributes…

A: Primary Key for patients table  - patient-id  Primary Key for doctors table  - doctor-id  Primary…

Q: The following relational database schema stores information about a restaurant. The primary keys are…

A: CREATE PROCEDURE highest_paid_emp     select ename          from employee where      eage>30 and…

Q: Patient ( www er, firstName:varchar(20), Answer questions 2.1 to 2.4 based on the following schema.…

A: Solution:   2.1)   Creating Treatment table:   CREATE TABLE Treatment( doctorId integer PRIMARY KEY,…

Q: Map the database schema shown in the following figure into schema. a relational database

A: For 1:M relationship, include primary key of entity into schema of entity present on many side of…

Q: Q2/ Consider the relational database of Figure 1. What are the appropriate primary keys? employee…

A: Answer: The Primary Key is used to uniquely identify each record in a table. Primary key cannot have…

Q: Which of the following best describes a relationship in which each instance of data in one entity…

A: One to One: An instance of data in one entity can be associated with at most one instance of other…

Q: A customer directly saving to a database to save his information is a violation of a Data Flow…

A: A person information is divided into entites.

Q: Explain what is meant by repetition of information and inability to represent information. Explain…

A: Repetition of information is a condition in a relational database where the values of one attribute…

Q: 2.2 In database design, we don't like many-to-many relationships. show by means of a diagram how the…

A: for many to many : -

Q: Create a database named Amazon using the attributes.Create individual tables based on below…

A: BUSINESS RULES   One customer can have one or more orders. One order belongs to only one customer.…

Q: 1- write the schema that descibes each relation. 2- For each table, identify the primary key and the…

A:

Q: Convert each ERD that follows into a relational database schema diagram using the above schema…

A: In answer A there are 3 tables in which two tables are entities and one is a relationship table…

Q: 3. Which of the following is a Data Model? a. Entity-Relationship model b. Relational data model c.…

A: ER or Entity-Relationship model:  it describes interrelated things of interest in a particular…

Q: Which of the following is NOT characteristic of a relational database model? A Tables B Tree like…

A: Relational Model

Q: Which of the following is NOT characteristic of a relational database model? A Tables B Tree like…

A: The correct answer is: B. Tree like structure

Q: s the relational governance might be

A: According to the question we need to Argue in what circumstances the relational governance might be…

Q: Draw relational database schema both of customer and FCC   Separate the CUSTOMER entity from the…

A: The ask is to draw the relational schema for Customer and FFC. It requires to separate and enhance…

Q: Consider the Computing equipment database schema defined as follows. Product (maker, model, type) PC…

A: a)R1 := σ type = "Laptop"(Maker) R2 := σ type = "Pc"(Maker)  R3 := R1-R2  R4 := π maker(R3)b)R1 :=…

Q: Create the database name Company which consists of one Entity name Employee which consists of 10…

A: Note: As per the guidance can answer the first three sections. Please re-submit the question for the…

Q: 4. Relational model. (6A „Asrl-sCi Consider the following relational database schema that contains…

A: A) Below are the superkeys we can form from Proj table {pid,pname} {pid,pname,budget}…

Q: Define your own data type to the attributes and apply your own constraints to the attributes…

A: It seems you have already created tables as you have not mentioned the relational model and…

Q: Question 2: Relational Model / Relational Algebra Consider the following schema, Sailors(sid:…

A: 1) Find the name of the sailor who reserved a blue boat having a rating at least 8 and older than 40…

Q: der the following five relations for an University database system: STUDENT (SSN, Name,…

A: Step 1: STUDENT (SSN, Name, Major_Department, Minor_Department, Bdate) DEPARTMENT (DepartmentName,…

Q: Consider the following relational database that represents books, publishers, and books published by…

A: As per our company guidelines we are supposed to answer ?️only first 3️⃣ sub-parts. Kindly repost…

Q: (ii) Four entities of the organization are: Worker, Customer, Product and Department. (a) Suggest an…

A: (ii) (a) Identifiers: Worker Ids (Worker_ID) for Worker entity. Product Number (Product_Number) for…

Q: (ii) Four entities of the organization are: Worker, Customer, Product and Department. (a) Suggest an…

A: 1. identifier is unique key that correctly identifies all columns of relation. that is for every…

Q: Based on the class diagram given below answer the following questions Course |teaches Professor…

A: ANSWER: Binary Relationship:

Q: Design a relational database that consists of the following stages: 1- Database requirements and…

A: Database scenario:- The ER diagram shows the hospital system model. The ER diagram shows every…

Q: Which of the following best describes a relationship in which each instance of data in one entity…

A: Explanation:   a. one-to-one - here each instance of data in one entity is described by one instance…

Q: (1) Draw the Relational Schema for the relationship(s) between STORE and REGION.

A: As per our guidelines, we are supposed to answer only first three parts of a question. Kindly repost…

Q: Design a database for an airline-system. The database must keep track Jai of customers and their…

A: Below i have answered:

Q: QUESTION 1 Consider the following database schema designed to store information about Books, and…

A: To display highest price we need to use MAX() with select command in sql. An average of the number…

Q: 1A. Consider the bank database schema as below. loan (loan_number, branch_name, amount) account…

A: According to the Question below the Solution:

Q: Question 2: Relational Model / Relational Algebra Consider the following schema, Sailors(sid:…

A: Given : Consider the following schema,   Sailors(sid: integer, sname: string, rating: integer, age:…

Q: Q1) Design a football matches database system using relational data model and then using SQL…

A: Given two questions are not related. So, as per our guidelines, only one question will be answered…

Q: Design a database for an airline-system. The database must keep track Ja of customers and their…

A: The entity relationship model for airline-system is define below in uploaded picture:

Q: Assume you have been asked to develop a system for a wireless carrier to facilitate web-based…

A: The Data Model is defined as an abstract model that organizes data description, data semantics, and…

Q: just answer true/false. a] There are three main components of ER model which are an entity, an…

A: Defined the given statements true or false

Q: Suppose you have the following relational database scheme for a real estate agency: Real Estate…

A: Solution:

Q: Consider the following schema: Suppliers (sid, sname, city) Parts (pid, pname, color) Catalog (sid,…

A: Answer :

Q: Create a data model to reflect the process of a consumer opening a checking account at a bank. The…

A: The data model is created with 5 tables 1.customer 2.account 3.accounttype 4.cus_account…

Q: 1.Indicate the changes (using the shorthand representation) that you would need to make to the…

A: Actually, database is a used to stores the data/information.