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Theta join operations are(a) Commutative(b) Associative(c) Distributive under projection(d) All of the mentionedThis question was addressed to me in a job interview.My question comes from Transformation of Relational Expressions topic in portion Query Processing and Optimization of RDBMS |
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Answer» RIGHT option is (d) All of the mentioned For EXPLANATION: The THETA join operations are commutative, associative and are DISTRIBUTIVE under projection. |
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