?If a primary key combines two or more fields, then it is called a _____.

A. ?foreign key
B. ?composite key
C. ?dedicated key
D. ?candidate key


Answer: B

Computer Science & Information Technology

You might also like to view...

Which statement is true?

A. Get and Set are C++ keywords. B. Functions that use the word Set in their name usually return information from a function. C. Functions that use the word Get in their name usually return information from a function. D. None of the above.

Computer Science & Information Technology

Craig is working in a database that stores homes for sale for a Realtor. The database contains a table called HomeListings which contains a field called ListingDate that holds the date that a home was listed. Craig is designing a query that will identify houses on the market for less than 30 days as new listings, and houses on the market 30 days or more as old listings. This information will be

included in a query column called ListingAge. Which of the following expressions will achieve these results? A) ListingAge: IIf(Date-[ListingDate]![HomeListings]<30,"New Listing","Old Listing") B) ListingAge: IIf(Date-[HomeListings]![ListingDate]>30,"New Listing","Old Listing") C) ListingAge: IIf(Date-[HomeListings]![ListingDate]<30,"New Listing","Old Listing") D) ListingAge: IIf(Date-[HomeListings]![ListingDate] < 30, "Old Listing","New Listing")

Computer Science & Information Technology

Automatically created ID-based styles appear in the Modify Styles panel, as shown in the accompanying figure.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

An antivirus application should be uninstalled before installing Windows and then reinstalled after Windows has been installed

Indicate whether the statement is true or false

Computer Science & Information Technology