Advanced Analytics with Transact-SQL (PDF)

Name: Advanced Analytics with Transact-SQL
Brand: APress
SKU: 139052682
Price: 36.99 EUR
Availability: OnlineOnly

Exploring Hidden Patterns and Rules in Your Data (Sprache: Englisch)

Autor: Dejan Sarka

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Advanced Analytics with Transact-SQL, Dejan Sarka

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Learn about business intelligence (BI) features in T-SQL and how they can help you with data science and analytics efforts without the need to bring in other languages such as R and Python. This book shows you how to compute statistical measures using your existing skills in T-SQL. You will learn how to calculate descriptive statistics, including centers, spreads, skewness, and kurtosis of distributions. You will also learn to find associations between pairs of variables, including calculating linear regression formulas and confidence levels with definite integration.

No analysis is good without data quality. Advanced Analytics with Transact-SQL introduces data quality issues and shows you how to check for completeness and accuracy, and measure improvements in data quality over time. The book also explains how to optimize queries involving temporal data, such as when you search for overlapping intervals. More advanced time-oriented information in the book includes hazard and survival analysis. Forecasting with exponential moving averages and autoregression is covered as well.

Every web/retail shop wants to know the products customers tend to buy together. Trying to predict the target discrete or continuous variable with few input variables is important for practically every type of business. This book helps you understand data science and the advanced algorithms use to analyze data, and terms such as data mining, machine learning, and text mining.

Key to many of the solutions in this book are T-SQL window functions. Author Dejan Sarka demonstrates efficient statistical queries that are based on window functions and optimized through algorithms built using mathematical knowledge and creativity. The formulas and usage of those statistical procedures are explained so you can understand and modify the techniques presented.

T-SQL is supported in SQL Server, Azure SQL Database, and in Azure Synapse Analytics. There are so many BI features in T-SQL that it might become your primary analytic database language. If you want to learn how to get information from your data with the T-SQL language that you already are familiar with, then this is the book for you.

You will learn to:

Describe distribution of variables with statistical measures
Find associations between pairs of variables
Evaluate the quality of the data you are analyzing
Perform time-series analysis on your data
Forecast values of a continuous variable
Perform market-basket analysis to predict customer purchasing patterns
Predict target variable outcomes from one or more input variables
Categorize passages of text by extracting and analyzing keywords

Autoren-Porträt von Dejan Sarka

¿Dejan Sarka, MCT and Data Platform MVP, is an independent trainer and consultant with more than 30 years of experience who focuses on development of database and business intelligence (BI) applications. He works on projects, and spends about half of his time on training and mentoring. He is the founder of the Slovenian SQL Server and .NET Users Group. Dejan Sarka is the main author or co-author of 19 books about databases and SQL Server, and has developed many courses and seminars for Microsoft, Radacad, SolidQ, and Pluralsight.