A ________ is a column (or set of columns) which have a unique value that cannot be duplicated in other rows?

a. primary key.
b. query.
c. SQL statement.
d. lookup value.

a. primary key.

Computer Science & Information Technology

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The vertical axis is typically ________

A) totals based on chart data B) a series of numbers C) text D) headings

Computer Science & Information Technology

Which interface is specifically intended to be implemented by classes that can be used with the try-with- resources statement?

a. Comparable b. Runnable c. AutoCloseable d. Serializable

Computer Science & Information Technology