There are 14 instances stored in the database described with several attributes: day, outlook, temperature, humidity, wind and 'playTennis'. Each instance describes the facts of the day and the action of the observed person (played or not played tennis). Based on the given record we can assess which factors affected the person's decision about playing tennis. Training Examples Outlook Day Sunny Temp. Humidity High High Wind Play Tennis No D1 Hot Weak D2 D3 Strong Weak Weak Weak Strong Weak Weak No Sunny Overcast Rain Hot Hot Yes D4 D5 High High Normal Normal Mild Yes Yes No Rain |Cool D6 Rain Сol D7 Overcast Cool Normal Yes D8 Sunny Sunny Mild No High Normal Normal Normal High Normal D9 Cool Yes Weak Strong Strong Strong Weak D10 Rain Mild Yes D11 Sunny D12 Overcast D13 Overcast Rain Mild Mild Yes Yes Yes Hot D14 Mild High Strong No

Q: _____ is defined as the condition in which all of the data in the database are consistent with the…

A: Introduction: Database: It is a logically organised collection of structured data stored…

Q: The database used for this question is a very simple one with the following schema: (Primary keys…

A: Hey, since there are multiple sub parts questions posted, we will answer first three question. If…

Q: The database used for this question is a very simple one with the following schema: (Primary keys…

A: a. We have selected the first name and last name attribute using project symbol, City named Perth…

Q: The database used for this question is a very simple one with the following schema: (Primary keys…

A: A)   First, select rows whose item names are ”Black Scratcher” and “Hair Remover” give the I_Name to…

Q: In the refational model, the database snapshot is also called Select one a KUrent set of entity…

A: The current set of entities is also called a database snapshot.

Q: The entity relationship diagram below models the components of a database belonging to TrueHealth, a…

A: For the given table structure need to write the SQL query:  1. Create all the necessary tables. Name…

Q: The database stores information about houses, each with a house ID, address, and zip code. 2. The…

A: Given: 1. The database stores information about houses, each with a house ID, address, and zip code.…

Q: several interviews with the users, you have come up with the following data requirements an business…

A:

Q: Create an Entity-Relationship Model for the Queen Anne Curiosity Shop The first assignment for the…

A: ER DIAGRAM: ER diagram is a non-technical design approach operates on conceptual level, focused on…

Q: The following relationships are used to keep an after-school calendar of events for students in a…

A: Actually, SQL stands for Structured Query Language.

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

A: Actually, A database is an organized collection of data, so that it can be easily accessed and…

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

A: Given ER diagram contains 5 entities: Class Course Student Instructor Department After converting…

Q: The database keeps track of three types of persons: employees, alumni, and students. A person can…

A: E-R Diagram- This Er model has 9 main entities- employee alumini student degree faculty staff…

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: Store the following fields for a library database: AuthorCode, AuthorName, BookTitle,…

A: Entities are: Author Publisher Book Borrower As per given, the keypoints are: one-to-many…

Q: Consider a database with the following schema: Person ( name, age, gender ) name is a key Frequents…

A: Answer: a). select pizzeria from frequents join person using(name) where age < 18; b). select…

Q: "In a library database system, an employee at the front desk responsible of entry of borrowing…

A: Casual End Users –These are the users who occasionally access the database but they require…

Q: Consider the following information about a university database: • Professors have an SSN, a name, an…

A: Answer: I have given answered in the handwritten format in brief.

Q: PART B Consider the college database you implemented in the image provided and answer the following…

A: Solution: 1.SQL statement that displays the data of the STUDENTS table SQL Query to create table1 :…

Q: Consider the following Books database which is used to keep track of books and their readers. Assume…

A: Given:

Q: A company has a single table in a computer(e.g a spreadsheet) in which every information about each…

A: 1)    A company has a single table in a computer(e.g a spreadsheet) in which every information about…

Q: If the state of a database no longer reflects a real life state the database is supposed to capture,…

A: Database: The database is used to store a set of information. The information in the database is…

Q: (4) Consider the following two relations in a database: CUSTOMERS: customer_id last_name first_name…

A: SQL is a language for interacting with databases. It is the basic language for relational database…

Q: (4) Consider the following two relations in a database: CUSTOMERS: customer_id last_name first_name…

A: Answer: Answer a: customer_id order_id order_date 4000 4 2016/04/20 5000 2 2016/04/18 7000…

Q: Suppose that we have the following relational database schema named the seventh art. The bold…

A: The solution for the above given question is given below:

Q: Consider a database with the following schema: Person ( name, age, gender )        name is a key…

A: SUMMARY: -   Hence, We discussed all the points

Q: This question is related to the subject of Database  Construct the relational model of the…

A: As per policy we can answer only  first 3 sub parts but I am doing 4 for you 1) select * from…

Q: The following relations kind a part of a on-line database (the relations area unit…

A: Due to the honor code, I can help you with 1st part. For 2nd part resubmit the question   From the…

Q: Subject:database administration and management question: select a database like customer…

A: Diagram of dependency among relations:               Architecture of Distributed Database:

Q: A project is proposed to design a database for online shopping, in which data about shops, products…

A: The cardinalities, PK, FK are depicted in the ERD diagram.

Q: Consider the following table in a relational database. Last Name Rank Room Shift Smith Manager 234…

A: A candidate key is an attribute or set of attribute which can identify all tuple uniquely.

Q: 2. Expand the database design you created in Exercise1 so that it will also support the following…

A: In order to store the records regarding the therapist, create a table Reservation table. The DBDL of…

Q: You are the CTO of a startup based out of Arlington, VA that needs to setup a database to keep track…

A: Explanation: Creating a table customer which stores details about the customer such as last name,…

Q: Suppose you are asked to design a club database system based on the following  information. Each…

A: Entity relationship (E-R) diagram consists of three major components that are: Entities, Attributes…

Q: Snapshot of the dta in the database at a given instant of time is called a. Database Schema b.…

A: In a computer system, we can define a snapshot is a state of the system at a given point of time.

Q: Consider the following scenario: two students are attempting to enrol for a course in which there is…

A: The student database management system simplifies the data processing procedure, allowing you to…

Q: Database Systems Construct the relational model of the following scenario in soft . System…

A: The following images shows the answer..

Q: You can make the following assumptions in this project. The database stores information about…

A: Ans 1:   First, we have to create a function to check if the house exists. So, we have to create a…

Q: If we want to keep track of the annual salary that is calculated depending on the stored monthly…

A: Required: Database

Q: Consider the following database schema. BOOK (BID, TITLE, GENRE, AUTHOR) BORROWS (RID, BID, DATE)…

A: Given database schema: -…

Q: 40. Every aggregation relationship is an association O True O False

A: Association and Aggregation are types of relationships that exists between two classes.  It is used…

Q: QUESTION 2 Consider the database schema below. Fruit (ID: integer. Name: String (unique)) Vitamin…

A: EXPLANATION: The entity set that is utilized to uniquely identify an entity inside its entity set…

Q: Consider the database schema below for hotels in countries. A country have many hotels, and the same…

A: Data Base Management System: DBMS is a software that is used to store, manage and use database…

Q: A database table is in 2nd Normal form if it is in 1" normal form and A. All non-key fields depend…

A: A database table is in 2 nd normal form if: The table is already in 1st normal form. i.e., all the…

Q: A database table is in 2nd Normal form if it is in 1 normal form and A. All non-key fields depend on…

A: A relational database is in 2NF , if it is firstly in 1NF that is free from Multivalued attribute…

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: 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 bank database.                                                        branch(branch…

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