Which of the Following Illustrates the Authors' Preferred Style of Defining

question 30

Multiple Choice

Which of the following illustrates the authors' preferred style of defining a primary key?

• A)CREATE TABLE CUSTOMER (
• CustomerID Integer Primary Key
• LastName Char(35)Not Null
• First Name Char(25)Null
• B)CREATE TABLE CUSTOMER (
• CustomerID Integer Not Null
• LastName Char(35)Not Null
• First Name Char(25)Null
• CONSTRAINT CustomerPK PRIMARY KEY (CustomerID)
• C)CREATE TABLE CUSTOMER (
• CustomerID Integer Not Null
• LastName Char(35)Not Null
• First Name Char(25)Null
• D)either B or C
• E)The author does not demonstrate a preference for how to define a primary key.

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Definitions:

Fund

A collection of money set aside for a specific purpose or invested to generate income.

Exist

To have actual being or reality.

Value

The importance, worth, or usefulness of something.

Instrument

An instrument in legal and financial contexts refers to a formal document that records a legal right, obligation, or transaction, such as a contract, will, promissory note, or security.