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Oracle

1Z0-074 · Question #50

Which two statements are true about the rules of precedence for operators? (Choose two.)

The correct answer is B. Multiple parentheses can be used to override the default precedence of operators in an expression E. The + binary operator has the highest precedence in an expression in a SQL statement. Explanation/Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/operators001.htm

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Question

Which two statements are true about the rules of precedence for operators? (Choose two.)

Options

  • AThe concatenation operator | | is always evaluated before addition and subtraction in an expression
  • BMultiple parentheses can be used to override the default precedence of operators in an expression
  • CArithmetic operators with equal precedence area evaluated from left to right within an expression
  • DNULLS influence the precedence of operators in an expression
  • EThe + binary operator has the highest precedence in an expression in a SQL statement

How the community answered

(33 responses)
  • A
    3% (1)
  • B
    73% (24)
  • C
    6% (2)
  • D
    18% (6)

Explanation

Explanation/Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/operators001.htm

Topics

#operator precedence#SQL expressions#parentheses#arithmetic operators

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