Which two statements are true regarding sub queries? (Choose two.)

Question

Options

• AA sub query can retrieve zero or more rows.
• BOnly two sub queries can be placed at one level.
• CA sub query can be used only in SQL query statements.
• DA sub query can appeal* on either side of a comparison operator.
• EThere is no limit on the number of sub query levels in the WHERE clause of a SELECT statement.

• A
  84% (48)
• B
  9% (5)
• C
  4% (2)
• E
  4% (2)

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