In past couple of months, I have prepared several articles on R and SQL Server that have been published on SQL Server Central .
The idea was, to have couple of articles covering the introduction to R, to basics on R Server, to some practical cases on R with SQL Server.
1) Using Microsoft R in Enterprise EnvironmentsArticle covers the concepts on Microsoft R Server, where and how to start with Microsoft R in enterprise environment and give answers to most common concerns people might have when introducing R language into corporation.

Link to article: http://www.sqlservercentral.com/articles/R+Language/140422/
2) Introduction to Microsoft R Services in SQL Server 2016Integration and architecture on Microsoft R Services is main focus of this article. It outlinesdifferent flavors of R (Open, Client, Server, Services, Hadoop, etc.), how to deal with installation and basic overview and explanation on extended stored procedure SP_EXECUTE_EXTERNAL_SCRIPT.

Link to article: http://www.sqlservercentral.com/articles/Microsoft/145393/
3) Installing R packages in SQL Server R ServicesExpand the functionality of R by adding new packages. Covers many ways how to install and add additional packages to your R environment.

Link to article: http://www.sqlservercentral.com/articles/R+Package/145571/
4) Using SQL Server and R Services for analyzing Sales dataProviding use cases on analyzing sales data was focus of this article with goal to show readers and users how to ope rationalize and bring R code into use in any enterprise (small or big) environment.

Link to article: http://www.sqlservercentral.com/articles/R+Services/145649/
5) Using Power BI and SSRS for visualizing SQL Server and R dataVisualizing the data for any use case, is also important aspect of understanding data insights. Article covers Power BI and SSRS visualization and how to embed R code in both tools.

Link to article: http://www.sqlservercentral.com/articles/R+Language/151358/
6) Using SQL Server and R Services for analyzing DBA TasksBroadening the use of Microsoft R for the DBA tasks was the main goal of this article. With simulation of the disk usage, showing R example how to switch from monitoring the usage to predicting the usage of disk space. Clustering executed queries to narrow down performance issues and visualizing Query store information with heatmap were also introduced in article.

Link to article: http://www.sqlservercentral.com/articles/R+Language/151405/
More articles will follow, so stick around.
Happy R-SQLing!