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Database Fundamentals and SQL Quiz

Question 1 of 20

Which of the following is used to indicate a column will not accept NULL values and can be referenced in another table's foreign key specification?

  1. Check constraint
  2. Default constraint
  3. Unique constraint
  4. Informational constraint

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000