Evaluate the following ALTER TABLE statement: ALTER TABLE orders SET UNUSED order_date; Which statement is true?

Question

Options

• AThe DESCRIBE command would still display the ORDER_DATE column.
• BROLLBACK can be used to get back the ORDER_DATE column in the ORDERS table.
• CThe ORDER_DATE column should be empty for the ALTER TABLE command to execute
• DAfter executing the ALTER TABLE command, you can add a new column called ORDER_DATE

• A
  11% (5)
• B
  4% (2)
• C
  2% (1)
• D
  83% (38)

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