20 - Consider the following Entitiy Relationship diagram. Which of the following relation will not hold if the above ER diagram is mapped into a relational model? I) Product (ProductId, Desciption) II) Requests (ProductId, Orderld) II) Order (Orderld, Productld, Date) IV) Order (Orderld, Date)

20 - Consider the following Entitiy Relationship diagram. Which of the following relation will not hold if the above ER diagram is mapped into a relational model? I) Product (ProductId, Desciption) II) Requests (ProductId, Orderld) II) Order (Orderld, Productld, Date) IV) Order (Orderld, Date)

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

See similar textbooks

Related questions

Q: produce a list of relations indicating the primary key, columns and foreign keys.

A: Given data:Given columns:customerIDcustomerNamecustomerCurrentAddress…

Q: Question: Draw a diagram showing the relationships for all the tables. The following tables need to…

Q: Date award Completed Name Scout Award webLink Name has isa Phone Bdate ScoutID Pin Badge Journey…

A: Here we have 6 entities. We will have one relation table for each entity. Thus a total of 6 table…

Q: 39 Refer to the following ER diagram to answer the question below: PK Student SSN Name Year GPA How…

A: Answer:- The correct answers are: A) The CampusID attribute in the Registration relation is a…

Q: Consider the following relational schema: Staff (staffNo, name, dept, skillCode) Skill (skillCode,…

A: The question is asking for SQL queries to extract specific information from a relational database.…

Q: Normalise the answer from Q.5.2 to third normal form (3NF), showing all steps with explanations. The…

A: Please check the step 2 for solution

Q: Given the following relational schema (Hint: the bold text represents a primary key), Department…

A: Relational algebra is used to represent relational query using operators.

Q: Mapping: Create relational schemas for the ER diagram given below. Indicate clearly the primary and…

A: The processes to generate the relational schemas for the provided Entity Relationship diagram are…

Q: Convert the Entity Relationship Diagram in to QI. relational database by using MS Access (Note:…

A: maintain the oder of creating table CUSTOMER TABLE CREATE TABLE CUSTOMER( CUSTOMER_ID NUMBER(5),…

Q: How to Doing "Update-Database" within your code in Entity Framework.

A: The databases used by non-development environment applications frequently need to be updated. After…

Q: The bus ticketing report shown above displays snippet of the daily transactions. Based on this…

A: The given table is a dataset that stores the route, ticket, customer and travel dates for a bus…

Q: Make sure the SQL script file can be run successfully in MySQL and show the outcome of the code on…

A: Task 1: Create TablesWe have to create tables for Orders, Customers, Items, and any associative…

Q: How does a relation's primary key affect its attributes' functional dependencies?

A: Introduction: Relational databases are widely used in modern computing systems to store and manage…

Q: NORMALIZATION The table above displays snippet of the monthly loan application report send by all…

A: Answer:

Q: Convert the following ERD to relation schemas. EXPLAIN your answer. Dept Course number Name Name Id…

A: The Answer is

Q: Mapping: Create relational schemas for the ER diagram given below. Indicate clearly the primary and…

A: The relational schema has been given in step 2.

Q: Mapping: Create relational schemas for the ER diagram given below. Indicate clearly the primary and…

A: The processes to generate the relational schemas for the provided Entity Relationship diagram are…

Q: Which is the process of breaking a relation into multiple relations: a. Functional dependency b.…

A: This mcq is related to RDBMS.

Q: relations are not physically sorted but both have an index on the attributes that are being merged,…

A: In this question we have to understand the term provided where when both relations are not…

Q: QUESTION 4 For the following collection of entities, give the assumptions concerning the…

A: Given entities: ORDER (order#, ordDate, cust#, cName ) ORDER_PART ( order#, part#, quantity ) PART…

Q: Ņ 5. Table 4-5 shows a shipping manifest. Your assignment is as follows: a. Draw a relational schema…

A: a. Relational Schema and Functional Dependencies:Here is the relational schema for the Shipping…

Q: Write an SQL Assertion statement to enforce the functional dependency Title → Salary for the…

A: The above question includes two concepts of Assertion Statement and Functional Dependency Title->…

Q: Consider the following relations: Album (albumId: integer, title: string, artistId (FK): integer)…

A: Relational algebra to address each of these queries:1. Find all the titles of the albums.…

Q: Please transform the following Entity-Relationship Schema (Diagram) into a Relational Schema. Please…

A: Here PNo and SSno are primary key. The following are the entities : PROJECT, EMPLOYEE, ENGINEER The…

Q: What are the significant functional dependencies in this relation? (b) What is/are the…

A: Functional Dependencies (FD): It determines the relation between two attributes in…

Q: address phone_no Place Home Telephone name albumldentifer speed Lives Ssn copyrightDate ide…

A: The sql statements for all the above 9 tables has been created succesfully please refer in step2

Q: FK (if any) for each relation. Apt.# City St fname Iname name Ad id id name address (0,1) (1,1)…

A: Here relationship between Administrator is 1:1 where participation of Administrator is partial and…

Q: Translate the following ER Diagram into relational model. Show different relations that will result…

A: Relational Model is used for modelling data in the form of relations or tables. It represents how…

Q: Here is a table representing a relation named K ABC 012 345 678 Identify: 1. The attributes of R. 2.…

A: The question is asking which of the given statements is NOT true about relation R.

Q: just answer true/false a]Disjointness means that every entity of a supertype must be an entity in…

A: As per bartleby guidelines we need to answer only the first 3 subparts in a question. a]Disjointness…

Q: 1. The BOOK CHECKOUT relation stores data about books checked out by students at a university. The…

A: Book_checkout (studentID,studentname,studentphonenumber,ISBN ,booktitle,checkoutdate,returndate)…

Q: [1] carRepair.dia 00.00 date description 1 techID techName mentor Mentors supID supName Supervisor N…

A: Solution:

Q: QUESTION 5 A functional dependency is a relationship between or among : Attributes Rows Entities O…

A: Here in this question we have asked that a functional dependency is a relationship between or…

Q: Lab 3: Normalization Assignment: Problem #11 from Chapter #6. (Be sure to note that this is PROBLEM…

A: The relation schema for the table structure is given below, CHARTER (CHAR_TRIP, CHAR_DATE,…

Q: names, attribute names, primary keys and foreign keys as shown in below example: Relation1…

A: Relational schema shows how information is stored and organized within a database. The basic…

Q: Explain the usage of attributes and the generic name for attribute in the relationship mode

A: I have provided answer in step2

Q: For developing our queries, we will be using the following relational schema: Student(SID, name,…

A: Q1. Here we need to join relation Course and Offering and use selection operator to select only…

Q: Normalise the following relation to remove modification anomalies showing all steps for 1NF, 2NF and…

Q: a) Consider the following EER diagram. Map it to the relational model. Specify the relational schema…

A: A relational schema is a blueprint utilized in database design to represent the records to be…

Q: Provide the relation (relational notation) that represents the user view for the school advising…

A: a. Provide the relation (relational notation) that represents the user view for the school advising…

Q: Convert the following ERD into relational schema. It should include the relation names, attribute…

A: Convert strong entities into relational tables. Convert weak entities into relational tables.…

Q: which rules apply to desigining table with less redundancy? a) Binary Relationship b) Reflective…

A: The objective of the question is to identify the rules that apply to designing a database table with…

Q: Which of the following statements corresponds to the second normal form for an entity - relationship…

A: A relationship must have a key,with simphleks domains for its attributes and all non-key attributes…

Question

20 - Consider the following Entitiy Relationship diagram. Which of the following relation
will not hold if the above ER diagram is mapped into a relational model?
I) Product (ProductId, Desciption)
II) Requests (ProductId, Orderld)
III) Order (Orderld, Productid, Date)
IV) Order (Orderld, Date)
ProductID
Description
Orderld
Date
M
N
Product
Requests
Order
IV
b)
II
c) O I
d) O I|

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

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

25. In the relational model, relationships between relations or tables are created by using: a. composite keys b. determinants c. candidate keys d. foreign keys
Define the connection between a relation's main key and the functional relationships between all of its attributes.
Question: Draw a diagram showing the relationships for all the tables. The following tables need to be modified as shown (primary key attributes are bold, foreign key attributes are in italics): CID in Retail and Wholesale are defined as a primary key and a foreign key. CUSTOMER (CID, Name, Address) PHONE (PhoneNumber, Description, CID) RETAIL (CID, Type) WHOLESALE (CID, ContractID) CONTRACT (ContractID, Description) OLDCONTRACT (ContractID, Description) ORDER (OID, OrderDate, CID) PRODUCT (PID, Name, Price) DIVISION (DID, Name, Address) LINEITEM (OID, PID, Quantity, AmountCharged) PRODUCTION (DID, PID, Quantity, Rating) One-to-one Relationship If the foreign key will be the primary key or part of the primary key, choose the Identifying Relationship 1:1 icon. Otherwise, choose the Non-Identifying Relationship 1:1 icon.
Develop an Entity Relationships Diagram (ERD) based on the relational schemas in the 3NF for the starting relational schema in un-normalized form presented below. UNF:Order(OrderID, OrderDate, CustID, CustName, CustPhone, CCNum, CCExpDate, CCBank, BnkContName, BnkContPhone, CustEmail, OrderIP, SiteRefFrom, ShipStreet, ShipCity, ShipSt, ShipZip, OrderLineNum, ItemID, ItemName, ItemDesc, ItemQtyOrdered,ItemListPrice, ItemSalePrice, ItemQtyShip, ShipCharge, Tax, TotalDue)
Translate the following ER Diagram into relational model. Show different relations that will result in addition to their attributes, PKs and FKs. Newspaper AK newsPaperID newsPaperName newsPaperAddress Work for Actor Joumalist AK actorID AK journalistID -interview- firstName journalistName lastName dateOFbirth nationality write Edition Article -publishedIN- AK editionID PK articlelD editionDate article Title related To Topic AK topicID topicWording
Consider the follow relations’ schemas to answer the following questions: Student (sid, name, level, address) Book(bid, title, author) BorrowedBook(sid, bid, date) 1) Assume that, there are 10,000 Student records stored on 1,000 pages/blocks, 50,000 Book records stored on 5,000 pages, 300,000 BorrowedBook records stored on 15,000 pages, and there are 500 different authors. Find out what is the record size for each of the previous relation?, and what is the blocking factor for each relation?
Which one is correct * Consider the following ER diagram illustrating the relationship of customers and banks. DateActCreated BName BankID Cname Bank Account Customer NID Select from among the following candidates for relations, if the above ER is mapped into a relational model. 1-Customer(NID(pk).CName) 2-Account(DateAccCreated(pk).BName,CName) 3-Bank(BanklD(pk),NID.BName) 4-Bank(BankID(pk).BName) 5-Account(BankID(pk), NID (pk),BName, DateAccCreated) O 1,4 and 5 O 1,2 and 4 1,3 and 5 O 1,2 and 3
PLz help with the following: Translate your ER diagram into a relational schema in the form of SQL DDLs. Choose appropriate data types for each attribute and include primary key and foreign key constraints, Check and Not Null constraints.
Consider the following relation named Trip. Trip The functional dependencies are as follows: (TripID, TripName, StartLocation, State, Distance, MaxGrpSize, Type, SeasonNum, Season TripID, SeasonNum → TripID → A. SeasonNum →→ Season C. [TripName, StartLocation, State, Distance, MaxGrpSize, Type The tables that are in third normal form are: [TripName, StartLocation, State, Distance, MaxGrpSize, Type, Season Trip TripID, TripName, StartLocation, State, Distance, MaxGrpSize, Type) Season (Season Num, Season), TripSeason (TripID, SeasonNum) B. Trip (TripID, TripName, StartLocation, State, Distance, MaxGrpSize, Type) Season (SeasonNum, Season) Trip TripID, TripName, StartLocation, State, Distance, MaxGrpSize, Type) Season (TripID, SeasonNum, Season) D. None of the above
Candidate key is an attribute or set of attributes that uniquely identifies a tuple within a relation. Integrity constraints is to make sure that the data is accurate. Staff number in a staff table is a multiple attribute. A weak entity is an entity that is existence-independent. jgive answer true or false
What is the link between a relation's main key and the functional dependencies among all of its attributes?
Informally describe the conditions to be met for a relation to be in Second Normal Form. In terms of functional dependency, describe why the following CUSTOMER_PURCHASE relation is not in second normal form. This table describes every instance of an individual Customer purchasing a Product. How would this relation suffer from Update Anomalies? CUSTOMER_PURCHASE (CUSTOMER_ID, PRODUCT_ID, PURCHASE_DATE, PURCHASE_AMT, PRODUCT_DESCRIPTION, CUSTOMER_NAME) Note the relation’s primary key is underlined