Computer Science · Database Management Systems
रिलेशन स्कीमा पर विचार करें: R1{Roll_no, Name, Grades} और R2{Roll_no, Subject_ID, Grades}। इन दोनों संबंधों (relations) पर सीधे कौन सा ऑपरेशन नहीं किया जा सकता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1प्रोजेक्ट (Project)
- 2जॉइन (Join)
- 3सिल्क्ट (Select)
- 4यूनियन (Union)✓
सही उत्तर देखें
यूनियन (Union)
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