C The data value for a foreign key could be null. Which of the following best describes the purpose of a primary key.
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Its the encryption key that gets exchanged first with another party.
. B Each attribute in a table must have a unique name. A primary key uniquely defines each instance of a class in a data model or each. Test Bank Question 1530 Homework.
PRODUCT_NAME VARCHAR2 25 SUPPLIER_ID NUMBER FOREIGN KEY to SUPPLIER_ID of the SUPPLIER table. School University of South Florida. Because the primary key is used for lookups and comparisons a short primary key means the database management system can process it more quickly than a long primary key.
A primary key is an attribute that is required to exist in each table of a relational database and serves as the unique identifier for each record in a table. When the values in one attribute must exist in another attribute it is called. We use cookies to ensure that we give you the best experience on our website.
The definition of a primary key. To create the relationship between two tables. Blogging is my passion and I try my best to deliver some useful contents on our blogs for my respectable readers.
Unanswered Which of the following best describes the primary purpose of early traditional marriage. Which of the following best describes a primary key a. Which of the following best describes the purpose of a primary key.
Course Title ISM 3431. Pages 4 Ratings 100 6 6 out of 6 people found this document helpful. A Financial arrangement between families b Arranged by the Church с Romantic endeavour d The consummation of years of.
Its the first item that is entered into the database on a screen. BTo provide business information but are not required to build a database. Its the password that needs to be entered to open the database.
All of the above View Answer. C Indicates the minimum multiplicities of an association. Examine the structures of the PRODUCTS and SUPPLIERS tables.
Which of the following best describes the primary key. 11Which of the following best describes the purpose of a primary key. To provide business information but are not required to build a database.
Course Title BME 5. If you continue to use this site we will assume that you are. Section 14 Quiz.
D Values of a specific attribute must be of the same type. It is selected from a set of candidate keys. Which of the following describes the primary key _____.
A field that is defined as a primary key in one table is defined as an _____ in a related table. DTo ensure that each row in the table is unique. This question hasnt been solved yet.
Which of the following best describes information. SQL Server or other database management systems process number data types faster than character data types. Because the primary key is used for lookups and comparisons a short primary key means the database management system can process it more quickly than a long primary key.
It must be unique. Its a field that uniquely identifies the record. A Describes the characteristics of the class B Allows two tables to be connected C Matches values of foreign keys in other classes D Uniquely identifies each instance of the class Feedback.
ATo support business processes across the organization. View All Relationship Model and Normalization MCQS. Ask an expert Ask an expert done loading.
Which of the following best describes the purpose of. This preview shows page 2 - 4 out of 4 pages. School University of California Santa Cruz.
To create the relationship between two tables. A Allows linking two or more tables. 5 which of the following best describes the primary.
Course Title AIS 3526. Which of the following best describes the big themes or the topics of the database. It must be unique B.
Which of the following describes the primary key. All of the above describes the primary key. Information is the final product that is product that is produced by a database.
Group of answer choices. Topics Databases Primary Key. 3 CORRECT Which of the following best describes the purpose of a primary key.
Pages 3 This preview shows page 1 - 3 out of 3 pages. B Matches values of foreign keys in other classes. You may like these posts.
Group of answer choices. CTo create the relationship between two tables. Two or more tables that contain duplicate data are an.
All of the above. To ensure that each row in the table is unique. Use a number for the primary key whenever possible.
Animals Foster families Adoptions. A foreign key is an attribute that exists in relational databases in order to carry out the relationship between two tables. For keyboard navigation use the updown arrow keys to select an answer.
Answer all questions in this section 1. 5 Which of the following best describes the primary differences between northern. A foreign key is at the primary key of one table repeated in another table in order to create a relationship between the tables.
Which of the following correctly describes the Referential Integrity Rule. Which of the following best describes the purpose of a primary key. It helps in indexing of a large database C.
Lets test your knowledge of Primary Keys. To support business processes across the organization. Which foster families have the animals and the adoption history of each animal.
A The primary key of a table must have data values cannot be null. It makes sorting quicker D. It helps in indexing of a large database.
Pages 35 Ratings 100 1 1 out of 1 people found this document helpful. Which of the following best describes the purpose of a primary key A Allows. PRODUCT_ID NUMBER NOT NULL PRIMARY KEY.
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