Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 18MC
Which of the following defines a relationship in which data can have multiple occurrences in each entity?
- a. one-to-one
- b. one-to-many
- c. many-to-many
- d. none of the above
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Which of the following defines a relationship in which each occurrence of data in one entity is represented by multiple occurrences of the data in the other entity?a. one-to-oneb. one-to-manyc. many-to-manyd. none of the above
Which of the following defines a relationship in which each occurrence of data in one entity is represented by only one occurrence of data in the other entity?a. one-to-oneb. one-to-manyc. many-to-manyd. none of the above
Which of the following specifies the number of entities found in a relationship?
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Chapter 1 Solutions
Oracle 12c: SQL
Ch. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Discuss the problems that can be caused by data...Ch. 1 - Explain the role of a primary key.Ch. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - What type of relationship can’t be stored in a...Ch. 1 - Identify at least three reasons an organization...
Ch. 1 - Prob. 1MCCh. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Prob. 5MCCh. 1 - Prob. 6MCCh. 1 - Prob. 7MCCh. 1 - Which of the following has no partial or...Ch. 1 - Prob. 9MCCh. 1 - Which of the following has no partial dependencies...Ch. 1 - Which of the following has no repeating groups but...Ch. 1 - Prob. 12MCCh. 1 - Prob. 13MCCh. 1 - A unique identifier for a data row that consists...Ch. 1 - Which of the following symbols represents an...Ch. 1 - Prob. 16MCCh. 1 - Which of the following represents a field in a...Ch. 1 - Which of the following defines a relationship in...Ch. 1 - When part of the data in a table depends on a...Ch. 1 - Which of the following is used to join data...Ch. 1 - Which tables and fields would you access to...Ch. 1 - Prob. 2HOACh. 1 - Prob. 3HOACh. 1 - Prob. 4HOACh. 1 - Access path A database table is composed of...Ch. 1 - Prob. 6HOACh. 1 - Prob. 7HOACh. 1 - Prob. 8HOACh. 1 - Prob. 9HOACh. 1 - Prob. 10HOA
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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
- What is a relation?arrow_forwardWhat type of relationship can’t be stored in a relational database? Why?arrow_forwardWhich of the following symbols represents an optional relationship in an E-R model? a. a straight line b. a dashed line c. a straight line with a crows foot at both ends d. a straight line with a crows foot at one endarrow_forward
- In an ERD, entities do not have columns. Instead which of the following is used to describe the entity's characteristics? Group of answer choices attributes degrees instances relationshipsarrow_forwardWhich of the following is the term for a primary key of one relation placed into a second relation to establish a relationship? Group of answer choices foreign key field key referential integrity candidate key relocated keyarrow_forwardA)Which of the following are used to indicate cardinality symbols? a.WITHb.Pc.None of the aboved.Both A and B aboveB)State TRUE or FALSE. In a ternary relationship, an entity associates with itself. a.This is trueb.This is falseC)In database design, it is possible to give relationships names. a.This is trueb.This is falsearrow_forward
- 13. Which one of the following uniquely identifies the elements in the relation? a. Secondary Key b. Primary key c. Composite key d. Foreign keyarrow_forwardYou 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. Relationsarrow_forwardWhich of the following functional dependencies are satisfied (and not satisfied) by this relation and Why? (a) A → B Why? (b) A → CD Why? (c) AB → CD Why?arrow_forward
- Which statement is associated with two seperate entities. a) Attribute b) Entity Type c) Reflective Relationship d) Relationshiparrow_forwardTask 1:Create a database Entity and Relationship Diagram (ERD) for the following application:Please include answer with detailed explanationKhair Application: The Application idea: It is a mobile application called (Khair) to help people. This assistance is moral, material. This assistance is also provided by good people in our community. Example to understand the Application idea more: For example, a person urgently needs a medical chair or bed and does not have the ability to purchase what he needs. The medical chair or bed is requested through the application, and whoever has what he requests initiates the request through the application’s messages and determines the meeting place. Application models (page): Login included: login registration login included: user name password New registration included: name E-mail Password phone number date National Identification Number Home page included: Request - applicant name - address - send message Messages list form included: list of…arrow_forwardEach relationship is mapped into a relation? true or falsearrow_forward
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