Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 19MC
When part of the data in a table depends on a field in the table that isn’t the table’s primary key, it’s known as:
- a. transitive dependency
- b. partial dependency
- c. psychological dependency
- d. a foreign key
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When part of the data in a table depends on a field in the table that isn’t the table’s primary key, it’s known as:a. transitive dependencyb. partial dependencyc. psychological dependencyd. a foreign key
The fact that the value of a foreign key attribute must exist in another set of one or more key attributes in another table, is called a(n) __________.
Group of Choice:
A. functional dependency
B. semantic constraint
C. normal form
D. referential integrity constraint
E. Transitive dependency
F. insertion anomaly
In a relationship, when a primary key from one table is also defined in a related second table, the field in the second table is referred to as a ____________.
Question 13 options:
1)
composite key
2)
redundant key
3)
primary key
4)
foreign key
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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- The FOREIGN KEY constraint should be added to which table? the table representing the “one” side of a one-to-many relationship the parent table in a parent-child relationship the child table in a parent-child relationship the table that doesn’t have a primary keyarrow_forwardWhat is a relation?arrow_forwardWhat is the difference between a PRIMARY KEY constraint and a UNIQUE constraint?arrow_forward
- When an attribute is a component of a composite primary key, that attribute is also considered to be a candidate key for the table.arrow_forward97. The column header of table in relational model terminology is classified as a. attribute b. table starter c. table ender d. entity domainarrow_forward35. Key to represent relationship between tables is called a. Primary key b. Secondary Key c. Foreign Key d. None of thesearrow_forward
- What would be introduced as criteria of a table being in first normal form? a.) There should be no functional dependencies. b.) The primary key of the table should be composed of one column. c.) Each cell of a table should have a single value. d.) Every functional dependency where X is functionally dependent on Y, X should be the super key of the table.arrow_forwardAn entity's primary key as an attribute creates a Parent-Child connection between tables. B Multiple-to-many tables. C Table network model. D Tables link one-to-many.arrow_forwardWhen an attribute is included in a composite primary key, it automatically becomes a candidate key for that table.arrow_forward
- Table name: Supplier Column Name Role Data Type Length Constraint supplierID Stores the ID of a supplier Number 10 Primary key supplierFName Stores the first name of a supplier Varchar2 30 Cannot be null supplierLName Stores the last Name of a supplier Varchar2 30 Cannot be null supplierDOB Stores the date of birth of a supplier Date - supplierNBPro Stores the number of products supplied by a supplier Number 3 Should be greater than 10 a. Write in SQL a statement that adds a new column named comapnyID of type char(5). This column should be defined as a foreign key that relates the table Supplier to the table Company b. Write in SQL a query that displays the ids of the suppliers who supply the highest number of products. c. Create a view named ‘SupplierDetails’ to hold all the details of suppliers whose last names start with ‘bait’ and who supply between 50 and 200 products.arrow_forwardIf a report is based on an underlying table, it must contain all the information that can be found in the records of the underlying table. True Falsearrow_forward
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