Multiple choice technology

DATE_DIFF( Dec 10 1997 5:55:10PM, NULL , 'DD' ) gives________

  1. 0

  2. 1

  3. -1

  4. NULL

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When any parameter in DATE_DIFF is NULL, the function returns NULL. This is standard NULL handling behavior - NULL propagates through calculations in Informatica (and SQL), making the entire result NULL.