engineering computer science MCQ #678

Which of the following is not a type of database constraint?

engineering computer science MCQ #678

  1. Question 1

    Q1. Which of the following is not a type of database constraint?

    • A) Primary Key
    • B) Foreign Key
    • C) Index
    • D) Unique

    Answer: Index

    Explanation: Index is not a constraint but a data structure used to improve query performance.