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Oracle

1Z0-882 · Question #4

Consider the my_table table with two integer columns, a and b, and the contents as shown; Mysql > SELECT a, b FROM my_table; 1 row in set result of this query? SELECT a--b FROM my_table;

The correct answer is C. 4. See the full explanation below for the reasoning.

Question

Consider the my_table table with two integer columns, a and b, and the contents as shown; Mysql > SELECT a, b FROM my_table; 1 row in set result of this query? SELECT a--b FROM my_table;

Options

  • A0
  • B2
  • C4
  • DAn error message

How the community answered

(34 responses)
  • A
    6% (2)
  • B
    15% (5)
  • C
    76% (26)
  • D
    3% (1)

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