Which of the Following Relational Operations Extracts Entire Columns from a Relation

question 45

Multiple Choice

Which of the following relational operations extracts entire columns from a relation?

• A) SELECT
• B) PROJECT
• C) JOIN

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Definitions:

Ending Inventory Value

The total value of all unsold inventory remaining at the end of an accounting period.

Average Cost Method

Uses the weighted average unit cost of the goods available for sale for both cost of goods sold and ending inventory.

Cost of Goods Sold

Direct expenditures involved in producing the merchandise a business sells.

FIFO Cost Flow

An inventory valuation method where the first items purchased are the first ones to be sold, assuming costs rise over time.