One of the best ways to teach yourself advanced database skills is to study a well-developed database.

What type of sub-query is an embedded SELECT expression that returns only one column and no more than one row?

a. Row sub-query b. Table sub-query c. Scalar sub-query

When you place an applet in an HTML document, you give the name of the _____________ file for the applet.

(a) .java (b) .class (c) both A & B (d) none of the above