Computer Science · Relational Database Management System
एंटिटी इंटीग्रिटी बनाए रखने के लिए निम्नलिखित में से कौन सा डेटाबेस घटक या कंस्ट्रेंट मुख्य रूप से NULL मानों के उपयोग को पूरी तरह प्रतिबंधित करता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1सेकेंडरी कीज़ (Secondary Keys)
- 2रिलेशंस (Relations)
- 3वेरिएबल्स (Variables)
- 4प्राइमरी कीज़ (Primary Keys)✓
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प्राइमरी कीज़ (Primary Keys)
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