EBK ORACLE 12C: SQL
3rd Edition
ISBN: 9781305465305
Author: CASTEEL
Publisher: YUZU
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Expert Solution & Answer
Chapter 1, Problem 2MC
Program Description Answer
“One-to-many relationship” is defined as a relationship in which each occurrence of data in one entity is represented by multiple occurrences of the data in the other entity.
Hence, correct answer is option “B”.
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Students have asked these similar questions
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
relationships
Assignment Brief:
Some of the most difficult decisions that you face as a database developer are what tables to
create and what columns to place in each table, as well as how to relate the tables that you
create. Normalization is the process of applying a series of rules to ensure that your database
achieves optimal structure. Normal forms are a progression of these rules. Each successive
normal form achieves a better database design than the previous form did. Based on your
understanding for the various normal form respond to the following problems and provide the
optimal answer/solution.
Problem#1: 1st Normal Form (1NF)
Consider the Students table, with the primary key underlined, and the following data:
Students:
Alpha
100111
Email
doe@usna.edu
Name
Courses
GradePoints
NN204, SI204,
IT221
SM223, EE301
SI204
John Doe
2,3,3
Matt Smith
092244
113221
smith@usna.edu
black@usna.edu
4,4
Melinda
3
Black
NN204, SI204,
IT221
090112
Tom Johnson
Johnson@usna.ed
4,2,3
u
a) Is the Students table…
TRUE or FALSE - A super-entity can only have two sub-entities and no more.
Select one:
a.FALSE
b.TRUE
Chapter 1 Solutions
EBK 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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Similar questions
- Which of the following defines a relationship in which data can have multiple occurrences in each entity? one-to-one one-to-many many-to-many none of the abovearrow_forwardWhat is a relation?arrow_forwardData standardization usually focuses on fixing _ of data while data cleaning usually focuses on fixing _ of data. A- The entity; data dictionary B- The attribute; the entity C- The entity; the attribute D- Data dictionary; the entityarrow_forward
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- Question 7 On ERD, you can create attributes with the same name in different Entities. Question 7 options: True Falsearrow_forwardLook at the 4 entities below and assume that customer_id is the key common to all tables. • Customer: An entity that describes a customer. An instance occurs for unique customers only using name, date of birth, and login name as customer_id primary key. • Online: An entity that describes a customer purchasing activity online. An instance occurs when the customer completes the transaction. Customers can purchase more than once. • Visits: An entity that describes a customer purchase in a physical store. An instance occurs if a customer makes or purchase or checks-in using an app. Customers can visit more than once per day. • Satisfaction: An entity that represents data from a recent customer satisfaction survey. An instance occurs when a customer takes the survey. A customer is tracked by login name and can only take the survey one time. Use the information to match the following relationships. Answers can be reused more than once. The relationship between Customer and Online The…arrow_forward162. In DBMS, the property of interest which further describes the entity is classified as a. relationship b. abstraction c. entity d. attributearrow_forward
- i have an ERD question to finish pleasearrow_forwardA rental car agency classifies the vehicles it rents into four categories: compact, mid-size, full-size and sport utility. The agency wants to record the following data for all vehicles: Vehicle, Make, Model, Year and Color. There are no unique attributes for any of the four classes of vehicles. The entity type vehicle has a relationship named Rents with customer entity type. None of the four vehicle classes has a unique relationship with any entity type. Would you consider creating a supertype/subtype relationship for this problem? Why or why not?arrow_forwardPlease draw an Entity-Relationship diagram for the given below MOVIE database. The data requirements are summarized as follows: Each movie is identified by title and year of release. Each movie has a length in minutes. Each has a production company, and each is classified under one or more genres (such as horror, action, drama, and so forth). Each movie has one or more directors and one or more actors appear in it. Each movie also has a plot outline. Finally, each movie has zero or more quotable quotes, each of which is spoken by a particular actor appearing in the movie. Actors are identified by name and date of birth and appear in one or more movies. Each actor has a role in the movie. Directors are also identified by name and date of birth and direct one or more movies. It is possible for a director to act in a movie (including one that he or she may also direct). Production companies are identified by name and each has an address. A production company produces one or more movies.arrow_forward
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