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You're reading from  AWS Certified Database – Specialty (DBS-C01) Certification Guide

Product typeBook
Published inMay 2022
PublisherPackt
ISBN-139781803243108
Edition1st Edition
Concepts
IT Certification
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Author (1)
Kate Gawron
Kate Gawron
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Kate Gawron

Kate Gawron is a full-time senior database consultant and part-time future racing driver. She was a competitor in Formula Woman, and she aspires to become a professional Gran Turismo (GT) racing driver. Away from the racetrack, Kate has worked with Oracle databases for 18 years and AWS for five years. She holds four AWS certifications, including the AWS Certified Database – Specialty certification as well as two professional Oracle qualifications. Kate currently works as a senior database architect, where she works with customers to migrate and refactor their databases to work optimally within the AWS cloud.
Read more about Kate Gawron

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Performance tuning and maintaining a Redshift cluster

Tuning an Amazon Redshift database can make a huge difference to the costs and performance of your application. Amazon Redshift has six main areas you should consider when tuning it:

  • Massively parallel processing
  • Columnar data storage
  • Data compression
  • Query optimizer
  • Result caching
  • Compiled code

We will start by looking at massively parallel processing, which we mentioned briefly in the Overview of Amazon Redshift section.

Massively parallel processing

Parallel processing is when your workload is split across multiple strands to allow for faster querying. In theory, it will be quicker for your work to be done by four different strands simultaneously than by one, even with the overhead of merging the individual strands at the end. With most RDBMSs, the parallelism is contained in a single node, so the maximum speed of the query is limited by the overall resource to that one node, and limits...

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AWS Certified Database – Specialty (DBS-C01) Certification Guide
Published in: May 2022Publisher: PacktISBN-13: 9781803243108
© 2022 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Kate Gawron

Kate Gawron is a full-time senior database consultant and part-time future racing driver. She was a competitor in Formula Woman, and she aspires to become a professional Gran Turismo (GT) racing driver. Away from the racetrack, Kate has worked with Oracle databases for 18 years and AWS for five years. She holds four AWS certifications, including the AWS Certified Database – Specialty certification as well as two professional Oracle qualifications. Kate currently works as a senior database architect, where she works with customers to migrate and refactor their databases to work optimally within the AWS cloud.
Read more about Kate Gawron

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