MC A foreign field must appear________as the primary key of another table.

a) at least once.
b) exactly once.
c) at most once.
d) None of the above.

b) exactly once.

Computer Science & Information Technology

You might also like to view...

A(n) ____________________ is a storage location for software packages - usually a Web server.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology

Applying a namespace to an XML document involves identifying the elements and attributes within the document that belongs to that namespace and _____.

A. declaring the namespace B. defining the namespace C. referencing the namespace D. applying the namespace

Computer Science & Information Technology