Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 DBMS Query Language Relational Algebra

दो संघ-संगत संबंधों R1 (A, B) और R2 (C, D) के लिए, संक्रिया R1 ⋈ (A=C ∧ B=D) R2 का परिणाम क्या है?

1
R1 ∪ R2
2
R1 x R2
3
R1 - R2
4
R1 ∩ R2
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