engineering recuitment RPSC Programmer Mock Test 2024 DBMS Query Language Relational Model

If D1, D2,...,Dn, are domains in a relational model, then the relation is a table, which is a subset of

1
D1 ⊕ D2 ⊕ .... ⊕ Dn
2
D1 × D2 × ...× Dn
3
D1 ∪ D2 ∪ ...∪ Dn
4
D1 ∩ D2 ∩ ...∩ Dn
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