Book Image

Hands-On Data Science with SQL Server 2017

By : Marek Chmel, Vladimír Mužný
Book Image

Hands-On Data Science with SQL Server 2017

By: Marek Chmel, Vladimír Mužný

Overview of this book

SQL Server is a relational database management system that enables you to cover end-to-end data science processes using various inbuilt services and features. Hands-On Data Science with SQL Server 2017 starts with an overview of data science with SQL to understand the core tasks in data science. You will learn intermediate-to-advanced level concepts to perform analytical tasks on data using SQL Server. The book has a unique approach, covering best practices, tasks, and challenges to test your abilities at the end of each chapter. You will explore the ins and outs of performing various key tasks such as data collection, cleaning, manipulation, aggregations, and filtering techniques. As you make your way through the chapters, you will turn raw data into actionable insights by wrangling and extracting data from databases using T-SQL. You will get to grips with preparing and presenting data in a meaningful way, using Power BI to reveal hidden patterns. In the concluding chapters, you will work with SQL Server integration services to transform data into a useful format and delve into advanced examples covering machine learning concepts such as predictive analytics using real-world examples. By the end of this book, you will be in a position to handle the growing amounts of data and perform everyday activities that a data science professional performs.
Table of Contents (14 chapters)

Summary

SQL Server advanced significantly when ML Services was introduced. In this chapter, we used ML Services to train a simple predictive model. Because of the relational nature of SQL Server, we used the R language, which is suitable for predictive modeling.

In the first section, we started by learning how to check whether ML Services is installed and which languages are supported. Having an installation of ML Services is not enough; it must be properly configured in conjunction with a SQL Server instance. We learned how to configure the whole environment for external languages.

In the second section, we created a physical database schema that can be used to maintain trained predictive models. Different versions of predictive models are usually kept for comparison, so we looked at two approaches to carry out machine learning model versioning.

In the third section, we created...