Home / CSE MCQs / DBMS MCQs :: Discussion

Discussion :: DBMS MCQs

  1. All aggregate functions except _____ ignore null values in their input collection.
  2. A.
    Count(attribute)
    B.
    Count(*)
    C.
    Avg
    D.
    Sum

    View Answer

    Workspace

    Answer : Option B

    Explanation :

    Count(*)

    * is used to select all values including null.


Be The First To Comment