Computer Science · Database Management Systems
To ensure that a column in an employee table must always contain a value and cannot accept empty or missing values, which data constraint must be applied?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1Distinct
- 2Unique
- 3Not Null✓
- 4Null
Correct answer
Not Null
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Computer Science?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Database Management Systems MCQs →Want more practice questions on Database Management Systems?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Computer Science · Database Management Systems