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SQL for Data Analytics

You're reading from  SQL for Data Analytics

Product type Book
Published in Aug 2019
Publisher Packt
ISBN-13 9781789807356
Pages 386 pages
Edition 1st Edition
Languages
Authors (3):
Upom Malik Upom Malik
Profile icon Upom Malik
Matt Goldwasser Matt Goldwasser
Profile icon Matt Goldwasser
Benjamin Johnston Benjamin Johnston
Profile icon Benjamin Johnston
View More author details

Table of Contents (11) Chapters

Preface 1. Understanding and Describing Data 2. The Basics of SQL for Analytics 3. SQL for Data Preparation 4. Aggregate Functions for Data Analysis 5. Window Functions for Data Analysis 6. Importing and Exporting Data 7. Analytics Using Complex Data Types 8. Performant SQL 9. Using SQL to Uncover the Truth – a Case Study Appendix

Text Analytics Using Postgres

In addition to performing analytics using complex data structures within Postgres, we can also make use of the non-numeric data available to us. Often, text contains valuable insights – you can imagine a salesperson keeping notes on prospective clients: "Very promising interaction, the customer is looking to make a purchase tomorrow" contains valuable data, as does this note: "The customer is uninterested. They no longer have a need for the product." While this text can be valuable for someone to manually read, it can also be valuable in the analysis. Keywords in these statements, such as "promising," "purchase," "tomorrow," "uninterested," and "no" can be extracted using the right techniques to try to identify top prospects in an automated fashion.

Any block of text can have keywords that can be extracted to uncover trends, for example, in customer reviews, email communications...

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