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Query Processing

Query Processing. Exercise. Compute depositor customer, with depositor as the outer relation. Customer has a secondary B + -tree index on customer-name Blocking factor 20 keys # customer = 400b/10,000t # depositor =100b/5,000t Merge join log(400) + log(100) + 400 + 100 = 516.

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Review

Review. Chapter 4: Processes Chapter 5: Threads Goal: To have an concrete understanding on the process abstraction. Little detour to explain the notion of process.

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Query Processing

Review