please answer within 30 minutes. 3. Answer the following questions with reference to how the ER model in the figuremaps to relational tables.ABaNo(PK)1..11. No (PK)1..11...XDCoNo (PK)1...xNo (PK)1..1 dNo (PK)1..11..1No (PK)1) Provide appropriate names for the relationsmapped from the ER model, using only the letteridentifier for each entity2) How many foreign keys are mapped to therelation representing X?3) Which relation(s) will have no foreign key?E0...

In the given question we have to: 1) Provide appropriate names for the relations mapped from the ER…

3. Answer the following questions with reference to how the ER model in the figure maps to relational tables. A B aNo(PK) 1..1 bNo (PK) 1. 1..1 1..* X D xNo (PR) 1..1 No (PK) 1..1 1.1 No (PK) C No (PK) E 0...

3. Answer the following questions with reference to how the ER model in the figure maps to relational tables. A B aNo(PK) 1..1 bNo (PK) 1. 1..1 1..* X D xNo (PR) 1..1 No (PK) 1..1 1.1 No (PK) C No (PK) E 0...

Fundamentals of Information Systems

9th Edition

ISBN:9781337097536

Author:Ralph Stair, George Reynolds

Publisher:Ralph Stair, George Reynolds

Chapter3: Database Systems And Big Data

Section: Chapter Questions

Problem 4SAT

See similar textbooks

Related questions

Q: The fact that computer security is almost often considered as an afterthought rather than an…

A: Answer : Yes , it is true that Computer security comes after the development phase but it make a bad…

Q: Make clear which communication service is most suited for your needs, highlighting the pros and cons…

A: Connection-Oriented Connection-less Packets are transmitted across the internet without establishing…

Q: RAID storage technologies have made it possible to store large databases in several locations. As…

A: Introduction: Raid uses many discs in a redundant arrangement. RAID integrates several discs into a…

Q: When it comes to protecting personal information, what's the difference between global policy and…

A: Below is a comparison of worldwide data privacy policies and legislation. Data privacy policies are…

Q: rget language and machine lang

A: Given: target language and machine language

Q: Remove any node from the tree from #1. And replace it with a new value. Draw the resulting BST.

A: Deletion algorithm to delete a node from Binary search tree. Locate the node, which you want to…

Q: Description Write a C program that will input 10 names of student. Each student name has 4 exam…

A: Code as par your requirement: #include <stdio.h> struct student { char name[20];…

Q: Provide an example of how Service-Oriented Architecture (SOA) works in the real world. A more…

A: Introduction: Service -oriented Architecture style for building software applications that use…

Q: It is desirable to use either descriptive or prescriptive models; nevertheless, which is superior?

A: Descriptive or prescriptive model: The events that had place throughout the process of developing…

Q: You can define numbering series for journal entries on the document Numbering screen under the…

A: Document numbering is often set up during SAP Business One implementation, but there are many…

Q: What is the importance of linux partitioning?

A: Disk partitioning is the creation of separate divisions of a hard disk drive using partition editors…

Q: When written out in its whole, the acronym GSM refers to what exactly? Your phone wouldn't be able…

A: The GSM (Global System for Mobile Communication) digital network is well-known among mobile phone…

Q: Atomic weights are not provided, but please use rounded-off values to the nearest whole number.…

A: As per our guidelines we are only allowed to provide one question which is given in the step 2

Q: Given the following code, the output is __. try { Integer number = new Integer("1");…

A: EXPLANATION: When running Java code, several mistakes might occur, including programmer errors,…

Q: 1. The lengths of pregnancies are normally distributed with a mean of 267 days and a standard…

Q: Operating systems may be installed on a single computer by using the virtual environment, which is…

A: Introduction: Virtualization is a technique for simulating a real installation or system by using…

Q: Different techniques to express patterns exist. Mention and explain five different approaches to…

A: Please find the detailed answer in the following steps.

Q: Completely comprehend the notion of social networking. What exactly is autonomous computing, and how…

A: Start: Using online social media to engage with friends, family, or classmates is known as social…

Q: Imagine that you are employed by a company as a system analyst for the company that you work for. Do…

A: Below are the primary distinctions between the system development cycle and the system maintenance…

Q: 5.1.2. (-) Prove that the chromatic number of a graph equals the maximum of the chromatic numbers of…

A: According to the information given:- We have to prove the chromatic number of a graph equals the…

Q: A simulation perspective on a system's components may be helpful in this discussion.

A: Establishment: The collection of entities that make up the facility or process of interest is…

Q: Consider how the advent of the personal computer and the World Wide Web has altered system…

A: Utilization: Usability is a feature of any system that enables the user to assess the system's…

Q: What are the best ways to prevent a data breach from occurring?

A: According to the information given:- We have to define the best ways to prevent a data breach from…

Q: Show that De Morgan's Law applies to Boolean algebra, by showing that for all x and y, (x ⋁ y)’ =x’…

A: Demorgans law: Demorgans law state that the complement of the union of two sets is equal to the…

Q: Answer with explanation. Which lambda expressions is/are correct for multiplying two numbers and…

A: Introduction: Lambda expressions are just the part of Java 8 feature that a short block of code and…

Q: Cloud computing's benefits What are cloud computing's dangers? Can cloud computing's benefits…

A: CLOUD COMMUNICATION: Cloud computing is the delivery of numerous services over the Internet.…

Q: Answer the following sentences true or false 1. The body of a loop can contain more than one…

A: Explanation: 1. A loop can have several statements in its body. The curly braces are not required if…

Q: **JAVA PROGRAM** Create a class calledEmailTask1. Assume that email address is constructed by…

A: import java.util.Scanner; public class Main //calledEmailTask1{ public static void main(String[]…

Q: What are the OSI model's seven levels of interconnection? Define each layer's purpose briefly.

A: ррliсаtion Lаyer: It acts as a window between users while utilizing applications such as a browser.…

Q: Consider the many barriers and problems you'll face as you build the framework, as well as each of…

A: Cloud computing: It has both advantages and disadvantages, and it is a current technology with a…

Q: Fill in the blanks with two examples each of real-world situations in which the following tools and…

A: Honeypot: A honeypot is a computer security system meant to detect and prevent illegal entry or…

Q: What distinguishes wireless connections from their wired counterparts is the lack of physical…

A: Introduction: A wired network is one in which PCs are connected by actual links and connectors.…

Q: Think about using an in-car navigation system to plan a trip, and provide one positive and one…

A: Car Navigation System: An automobile navigation system is either built into the car's controls or is…

Q: How many types of stack registers do we have? A. 4 B. 3 C.2 D.5

A: Answer

Q: You may take advantage of the high level of redundancy provided by a Hadoop installation. The fact…

A: The solution is as follows: EXPLANATION One of the benefits of a Hadoop system is the high level of…

Q: rity rules for the relational model. Discus

A: Introduction: Below the two principal integrity rules for the relational model

Q: What role does the MMU play in addressing the relationship between the physical and logical caches?…

A: Memory Management Unit (MMU) is the circuitry that converts logical addresses to physical addresses.…

Q: Why do you think data quality is one of the most important aspects of data warehousing? Describe the…

A: Data quality refers to a dataset's total utility as a function of its capacity to be processed and…

Q: This is the final class holding a public instance member of type Service. * ServicePOA.java O…

A: The answer of this question is as follows

Q: What is an abstract class?

A: Answer

Q: Answer the following sentences true or false 1. The loop execution is terminated on the basis of the…

A: here in the question ask true false for this statements.

Q: State the objective of a group support system gss and identify three characteristics that…

A: Comprises the majority of the elements in a DSS, as well as software, to give effective support in…

Q: What is time complexity of T(n) = 3T(n/2) + C, using the recurrence equations? Please help me

A: Answer

Q: Which approach is the most effective when it comes to installing and administering both physical and…

A: SDN controller: This item, which is referred to as the SDN controller, performs the tasks of a…

Q: Provide an explanation of the technical underpinnings of information technology, including its…

A: Basis of Information Technology: The computer uses Information Technology (IT) to store, receive,…

Q: Differentiate between Scope and Linkage

A: The answer is as follows. NOTE: in question there is no particular language. so i am going with c…

Q: In a project involving the creation of software, please explain the primary considerations that go…

A: The prototype model is used when the end-user requires a high level of engagement with the intended…

Q: In healthcare, what are the best procedures for preventing data breaches?

A: Start: Answer to the question posedAn unauthorised individual gained access to private, sensitive,…

Q: #include using namespace std; void transaction(double&, double, char&, int); int main() { double…

A: Given C++ program contains a function transaction and many variables are initialised in this…

Q: Illustrate the block diagram of the following. A. External Device a. I/O Module B. DMA

Concept explainers

Fundamentals of Datawarehouse

A data warehouse is a data repository which is used to store large quantities of historical data that are mostly used for creating reports that help businesses to identify their weaknesses and strengths. For example, demographics data about people of a region can help businesses identify the needs and preferences of the region’s population. A data warehouse acts as a central storage for storing data that comes from one or more heterogenous sources. It also consists of data which can be old and of historical value. One of the most important applications of this type of system is that it is used for supporting business intelligence and data analytics applications.

Question

please answer within 30 minutes.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

Please answer this DBMS ques asap! Suppose that we have three relations R1={A, B, C}, R2={A, B, D} and R3={B, C, D} under the relational data model. The relation R1 has 5 tuples, the relation R2 has 6 tuples and the relation R3 has 7 tuples. There are no NULL values in these relations. For each of the following relational algebra expressions, list the minimum and maximum numbers of tuples in the result that the relational algebra expression may have. (1) πA,B(R1)(2) R2 × πB(R3)(3) πB(R2) ∪ πB(R3)(4) R1 ⋈ R2(5) ρX (R2) ⋈X.B≠Y.B ρY (R2) You can use the following format to organise your answers.(1) max=____ , min=____ ;(2) max=____ , min=____ ;(3) max=____ , min=____ ;(4) max=____ , min=____ ;(5) max=____ , min=____ ;
Map (or transform) EER Model diagram below into a relational database schema. Take into account all the constraints in your EER model. Underline the primary key attributes of each relation and show each foreign key as a directed arrow from the referencing attribute(s) to the referenced attribute(s) in the referenced relation.
Provide a normalized relational logical schema for the same database (NB It is not mandatory to report the restructured ER diagram) Define referential integrity constraints for 2 relationships of your choice among those defined in the conceptual schema Normalized logical relational schema EMPLOYEE( CodE, NameE, Qualification*, Type)SEASIDE_RESORT(CodS, NameS, WebPage*)TIME (SDate)WORK_AT (CodE, CodS, SDate, EndDate, JobRole)BEACH_SEAT(CodS, CodBS, sea_distance, CodPR)PRICE_RANGE(CodPR, Amount) Referential integrities 1) RELATIONSHIP IN BEACH_SEAT(CodS) REFERENCES SEASIDE_RESORT(CodS) 2) RELAZIONE WORK_AT WORK_AT(CodE) REFERENCES EMPLOYEE(CodE)WORK_AT(CodS) REFERENCES SEASIDE_RESORT(CodS)WORK_AT(SDate) REFERENCES TIME(SDate)
Define the concept of entity integrity. Do the tables exhibit entity integrity? Answer yes or no and then explain your answer. Define the concept of referential integrity. Do the tables exhibit referential integrity? Answer yes or no and then explain your answer. Write NA (Not Applicable) if the table does not have a foreign key Create an ERD based on the Crow’s Foot model, using the database tables in Figure 1. Show the relationship's strength (weak or strong)
You are required to: Provide a normalized relational logical schema for the same database (NB It is not mandatory to report the restructured ER diagram) Define referential integrity constraints for 2 relationships of your choice among those defined in the conceptual schema solution: AUTHOR( author_id , name, surname) BOOK ( ISBN , title , num_page s , price ) CUSTOMER( customer_id , phone_number*, type, name*, surname*, vat_number*) CLERK( clerk_id , name) BUY( customer_id, clerk_id, ISBN ) WRITTEN_BY( author_id, ISBN ) 1) WRITTEN_BY (author_id) REFERENCES AUTHOR(author_id) WRITTEN_BY (ISBN) REFERENCES BOOK(ISBN) 2) BUY(customer_id) REFERENCES CUSTOMER(customer_id) BUY (clerk_id) REFERENCES CLERK(clerk_id) BUY (ISBN) REFERENCES BOOK (ISBN) i gave the solution. but i do not have any idea where it came from and how im supposed to formulate a similar solution so please help me understand how was this was reached and how i should solve these type of questions in…
Discuss each of the following concepts in the context of the relational data model: tuple intension and extension degree and cardinality.
Use the technique of normalization to validate the structure of your relational schema. Demonstrate that each of your relations is in third normal form (3NF) by displaying the functional dependencies between attributes in each relation. Note, if any of your relations are not in 3NF, this may indicate that your ER model is structurally incorrect or that you have introduced errors in the process of deriving relations from your model.
1. There are several attribute relationships, including partial dependency and transitive, give an example of the two relationships.2. Why do we do the normalization stage in database design, especially in the logical stage?
Consider the relation r(A, B, C), where the characteristic A serves as the index to the relationship. Give an example of a question that can only be answered by looking at the index, rather than the tuples in the relationship, and why this is so. (Index-only plans are query plans that solely make use of the index and do not touch the underlying relational database.)
Consider the following relational schema for a library database: Book (Title, Author, Catalog_no, Publisher, Year, Price, bookCoverType, contractDate) Collection (Title, Author, Catalog_no) Assume {Author, Title} is the key for both relations Additional functional dependencies are Title,Author --> Catalog_no Catalog_no --> Publisher, Year, bookCoverType Publisher, bookCoverType --> Price Author --> contractDate a) Explain what normal form the relation is in. b) Apply normalization until the 3rd State reasons behind each normalization
produce a list of relations indicating the primary key, columns and foreign keys. Consider the following attributes for tables in a relational model designed to keep track of information for a moving company that moves residential customers, usually from one home or apartment to another:customerID, customerName, customerCurrentAddress, customerCurrentPhone, customerNewAddress, customerNewPhone, pickupLocation, dropOffLocation, dateOfMove, startingTime, estimatedWeight, estimatedCost, truck#Assigned, driverName, driverLicNo, actualCost, amountOfDamages, truckCapacity, costOfTolls, tax, finalAmount, invoiceNumber, amountPaid, datePaid, checkNumber, amountDueAssume:- Although in most cases the pickupLocation is the customer’s old address and the dropOffLocation is the new address, there are exceptions, such as when furniture is moved to or from storage.-An estimate is provided before the move using a pre-printed invoice containing a unique invoice number. The actual cost is recorded on…
Consider the following relational schema that consists of five tables. Primary keys are (BOLD and Italicized). Attributes with the same names in different tables are foreign keys. The address and name attributes are just one column each. Person (driver_id, LastName, FirstName, EmailAddress, license, dateOfBirth) Car (license, model_id, color, report_num, trim) Accident (report_num, date, location) Model(model_id, description, year) PersonInsuranceCompany(driver_id, insurance_company_id, policy_issue_date) InsuranceCompany(insurance_company_id, name, EmailAddress) 3.1) Draw the corresponding ERD. Draw eligibly!!! Identify all relationships in the ERD that you created in part 3.1. For each relationship, identify the relationship connectivity (cardinality) and write a business rule to describe the relationship.