SQL Server R Services

External Article

SQL Server R Services: Working with Multiple Data Sets

  • Article

Although it is easy to use SQL Server R Services to create R scripts that incorporate SQL Server data by passing in a T-SQL query as an argument when calling the sp_execute_external_script stored procedure, you are limited to that one query, unless you pass additional data directly between R and SQL Server via CSV files. It is simple to do, and opens up many additional opportunities for data analysis. Robert Sheldon explains how.

2017-12-07

3,542 reads

External Article

SQL Server R Services: Working with ggplot2 Statistical Graphics

  • Article

It is when you use R in SQL Server with one of the huge range of packages that comes with it that you can begin to appreciate the power of the system. With a package such as ggplot there are many 'knobs one can twiddle' in order to get spectacular and informative visualisations. Rob Sheldon continues his beginners series for R in SQL Server by showing how to refine the output to get it as you need it.

2017-10-25

3,267 reads

External Article

SQL Server R Services: Digging into the R Language

  • Article

It is not just the analytic power of R that you get from using SQL Server R Services, but also the great range of packages that can be run in R that provide a daunting range of graphing and plotting facilities. Robert Sheldon shows how you can take data held in SQL Server and, via SQL Server R Services, use an R package called ggPlot that offers a powerful graphics language for creating elegant and complex plots.

2017-09-15

6,981 reads

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Question of the Day

Mixed Backups

I have a complex database with a few filegroups and files. Can I run a backup command like this? (assume file/filegroup names are valid). 

BACKUP DATABASE [complex]
    FILE = N'thirdone'
 ,  FILE = N'thirdtwo'
 ,  FILEGROUP = N'second' 
 TO  DISK = N'C:\Program Files\Microsoft SQL Server\MSSQL16.SQL2022\MSSQL\Backup\complex.bak' 
 WITH NOFORMAT, NOINIT,  NAME = N'complex-Full Database Backup', SKIP, NOREWIND, NOUNLOAD,  STATS = 10
GO

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