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SQL for Data Analytics

You're reading from   SQL for Data Analytics Harness the power of SQL to extract insights from data

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Product type Paperback
Published in Aug 2022
Publisher Packt
ISBN-13 9781801812870
Length 540 pages
Edition 3rd Edition
Languages
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Authors (4):
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Benjamin Johnston Benjamin Johnston
Author Profile Icon Benjamin Johnston
Benjamin Johnston
Matt Goldwasser Matt Goldwasser
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Matt Goldwasser
Jun Shan Jun Shan
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Jun Shan
Upom Malik Upom Malik
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Upom Malik
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Table of Contents (11) Chapters Close

Preface 1. Understanding and Describing Data 2. The Basics of SQL for Analytics FREE CHAPTER 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

Summary

Data analytics is a powerful method through which you analyze raw data to find patterns and gather predictions that help you to understand the world. The goal of analytics is to turn data into information and knowledge. To accomplish this goal, statistics, or descriptive statistics and statistical significance testing, are used to understand data.

Univariate analysis, a branch of descriptive statistics, can be utilized to understand a single variable of data. It can also be used to find outliers and the distribution of data by utilizing frequency distributions and quantiles. It is useful in finding the central tendency of a variable by calculating the mean, median, and mode of data and the dispersion of data using the range, standard deviation, and IQR.

Bivariate analysis is also used to understand the relationship between datasets. You can determine trends, changes in trends, periodic behavior, and anomalous points regarding two variables by using scatterplots. You can...

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