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Q:Question:Question 5. Relational Algebra and Optimization Consider a database with three relations: R(A, B) S(B, C) T(C, D). Q5.1 Translate the following query into relational
Q:Question:Question 5. Relational Algebra and Optimization Consider a database with three relations: R(A, B) S(B, C) T(C, D). Q5.1 Translate the following query into relational algebra expression. (6 marks) [ SELECT R, A, S . D R �· A, T ] WHERE R.B =S . B AND S.C = T.C AND R.A <15 >
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Database management systems
Authors: Raghu Ramakrishan, Johannes Gehrke, Scott Selikoff
3rd edition
72465638, 978-0072465631
