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[solution] » CPE 365 Introduction to Databases Spring 2008 Homework 1 Due: Thursday, May 1, in class Problem 1

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CPE 365 Introduction to Databases Spring 2008 Homework 1 Due: Thursday, May 1, in class Problem 1
More:CPE 365 Introduction to Databases Spring 2008 Homework 1 Due: Thursday, May 1, in class Problem 1 Consider the following relations: R: A B C b c 3 a c 2 c a 3 b b 1 c a 4 b a 2 S: A B C a c 2 c a 4 b b 4 a b 3 b c 3 a a 1 T: B D E F a a 1 2 c d 2 4 b b 3 2 d b 3 2 a d 2 3 b c 4 1 d a 1 4 W: C D 1 a 2 b 3 c 4 d For each of the following queries: (1) compute the answer, (2) draw the query tree.

 







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