This exercise refers to the relations R1 and R2 given below. Show the relations created as a

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This exercise refers to the relations R1 and R2 given below. Show the relations created as a result of the following relational algebra operations

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Data Modeling and Database Design

ISBN: 978-1285085258

2nd edition

Authors: Narayan S. Umanath, Richard W. Scammel

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Question Posted: Apr 21, 2016 06:26 AM

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This exercise refers to the relations R1 and R2 given below. Show the relations created as a

Question:

Relation R1 Rl.a R1.b R1.c 30 a 20 45 b 32 75 a 24 Relation R2 R2.x R2.y R2.z 30 b 24 75 с 12 30 b 20

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a The union of R1 and R2 b The difference of R1 and R2 c The difference o...View the full answer

Data Modeling and Database Design

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