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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