Multiple choice

Which of the following statements is/are false in SQL (Structured Query Language)?

  1. The order by clause removes duplicates.

  2. Distinct clause is used to remove duplicate records.

  3. Unique key has only one null value.

  4. A primary key does not allow any null value.

  5. None of the above

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

Yes, distinct clause is used to remove duplicates form the result set.