Which Keywords Are Used to Complete the Deletion of a Column

question 129

Multiple Choice

Which keywords are used to complete the deletion of a column previously marked with SET UNUSED?​

• A) ​DELETE UNUSED COLUMNS
• B) ​DROP UNUSED COLUMNS
• C) ​UNSET UNUSED COLUMNS
• D) ​DROP SET COLUMNS

---

Definitions:

Second-Price Auction

An auction format in which the highest bidder wins, but pays the price bid by the second-highest bidder.

Optimal Bidding Strategy

A method or plan designed to win at an auction or in a competitive context, maximizing the chance of success while minimizing costs.

True Value

The actual, inherent worth of an asset, without distortion from market factors or perceptions.

Bid-rigging

A fraudulent scheme where businesses collude to control the bidding process, often at the expense of fairness.