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Oracle

1Z0-007 · Question #40

Which three are true regarding the use of outer joins? (Choose three.)

The correct answer is D. You use an outerjoin to see only the rows that do not meet the join condition. E. In the WHERE condition, you use (+) following the name of the column in the table without matching F. You cannot link a condition that is involved in an outerjoin to another condition by using the OR operator. You can use an outerjoin to see only the rows that do not meet the join condition. In the WHERE condition, you use (+) following the name of the column in the table without matching rows, to perform an outerjoin. You cannot link a condition that is involved in an outerjoin to…

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Question

Which three are true regarding the use of outer joins? (Choose three.)

Options

  • AYou cannot use IN operator in a condition that involves an outerjoin.
  • BYou use (+) on both sides of the WHERE condition to perform an outerjoin.
  • CYou use (*) on both sides of the WHERE condition to perform an outerjoin.
  • DYou use an outerjoin to see only the rows that do not meet the join condition.
  • EIn the WHERE condition, you use (+) following the name of the column in the table without matching
  • FYou cannot link a condition that is involved in an outerjoin to another condition by using the OR operator.

How the community answered

(25 responses)
  • A
    16% (4)
  • B
    8% (2)
  • C
    4% (1)
  • D
    72% (18)

Explanation

You can use an outerjoin to see only the rows that do not meet the join condition. In the WHERE condition, you use (+) following the name of the column in the table without matching rows, to perform an outerjoin. You cannot link a condition that is involved in an outerjoin to another condition by using the OR Incorrect Answers A: You can use IN operator in a condition that involves an outerjoin. B: You use (+) following the name of the column in the table without matching rows, but not on both sides of the WHERE condition to perform an outerjoin. C: You don't use (*) to define outerjoin operation.

Topics

#outer join#Oracle join notation#IN operator restriction#OR operator restriction

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