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You're reading from  AWS Certified Machine Learning - Specialty (MLS-C01) Certification Guide - Second Edition

Product typeBook
Published inFeb 2024
PublisherPackt
ISBN-139781835082201
Edition2nd Edition
Concepts
Machine Learning
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Authors (2):
Somanath Nanda
Somanath Nanda
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Somanath Nanda

Somanath has 10 years of working experience in IT industry which includes Prod development, Devops, Design and architect products from end to end. He has also worked at AWS as a Big Data Engineer for about 2 years.
Read more about Somanath Nanda

Weslley Moura
Weslley Moura
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Weslley Moura

Weslley Moura has been developing data products for the past decade. At his recent roles, he has been influencing data strategy and leading data teams into the urban logistics and blockchain industries.
Read more about Weslley Moura

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Querying S3 data using Athena

Athena is a serverless service designed for querying data stored in S3. It is serverless because the client doesn’t manage the servers that are used for computation:

  • Athena uses a schema to present the results against a query on the data stored in S3. You define how (the way or the structure) you want your data to appear in the form of a schema and Athena reads the raw data from S3 to show the results as per the defined schema.
  • The output can be used by other services for visualization, storage, or various analytics purposes. The source data in S3 can be in any of the following structured, semi-structured, or unstructured data formats: XML, JSON, CSV/TSV, AVRO, Parquet, or ORC (as well as others). CloudTrail, ELB logs, and VPC flow logs can also be stored in S3 and analyzed by Athena.
  • This follows the schema-on-read technique. Unlike traditional techniques, tables are defined in advance in a data catalog, and the data’s structure...
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AWS Certified Machine Learning - Specialty (MLS-C01) Certification Guide - Second Edition
Published in: Feb 2024Publisher: PacktISBN-13: 9781835082201
© 2024 Packt Publishing Limited All Rights Reserved

Authors (2)

author image
Somanath Nanda

Somanath has 10 years of working experience in IT industry which includes Prod development, Devops, Design and architect products from end to end. He has also worked at AWS as a Big Data Engineer for about 2 years.
Read more about Somanath Nanda

author image
Weslley Moura

Weslley Moura has been developing data products for the past decade. At his recent roles, he has been influencing data strategy and leading data teams into the urban logistics and blockchain industries.
Read more about Weslley Moura

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