EBK DATABASE SYSTEM CONCEPTS
EBK DATABASE SYSTEM CONCEPTS
7th Edition
ISBN: 9781260049268
Author: SILBERSCHATZ
Publisher: MCG COURSE
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Chapter 22, Problem 14E

Explanation of Solution

a)

  • In a shared parallel architecture, neither the memory nor the disk is shared between processors.
  • Consider a workload which consists of large number of small transactions and utilizes shared nothing parallelism.
  • Intra –query parallelism is implemented while executing a single query in parallel on multiple processors and disks...

Explanation of Solution

b)

  • When workload gets distributed amongst processors, some of processors might get a larger number of tuples than others and it is called a skew...

Explanation of Solution

c)

  • Consider the given case with two tables, account and account type master record.
  • Since most of the transactions access account records, so using intra-query parallelism to follow the below steps.
    • Divide the data into equal numbers for the disks with each processor.
    • Assign a home processor Pi to each page of data which is on disk Di

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