Multiple choice technology databases

A null is the same as zero or a blank space.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

NULL represents an unknown or missing value, which is fundamentally different from zero (a numeric value) or a blank space (a character value). Any arithmetic operation with NULL returns NULL, and NULL is not equal to anything, including itself. This is a core SQL concept.

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