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The Excel Services ODBC Driver is a powerful tool that allows you to connect with live Excel Services data, directly from any applications that support ODBC connectivity.

Access Excel Spreadsheet data hosted on SharePoint server like you would a database - read, write, and update data through a standard ODBC Driver interface.

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Analyze SharePoint Excel Services Data in R


Create data visualizations and use high-performance statistical functions to analyze SharePoint Excel Services data in Microsoft R Open.

Access SharePoint Excel Services data with pure R script and standard SQL. You can use the CData ODBC Driver for SharePoint Excel Services and the RODBC package to work with remote SharePoint Excel Services data in R. By using the CData Driver, you are leveraging a driver written for industry-proven standards to access your data in the popular, open-source R language. This article shows how to use the driver to execute SQL queries to SharePoint Excel Services data and visualize SharePoint Excel Services data in R.

Install R

You can complement the driver's performance gains from multi-threading and managed code by running the multithreaded Microsoft R Open or by running R linked with the BLAS/LAPACK libraries. This article uses Microsoft R Open (MRO).

Connect to SharePoint Excel Services as an ODBC Data Source

Information for connecting to SharePoint Excel Services follows, along with different instructions for configuring a DSN in Windows and Linux environments.

The URL, User, and Password properties, under the Authentication section, must be set to valid credentials for SharePoint Online, SharePoint 2010, or SharePoint 2013. Additionally, the Library property must be set to a valid SharePoint Document Library and the File property must be set to a valid .xlsx file in the indicated Library.

When you configure the DSN, you may also want to set the Max Rows connection property. This will limit the number of rows returned, which is especially helpful for improving performance when designing reports and visualizations.

Windows

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

Linux

If you are installing the CData ODBC Driver for SharePoint Excel Services in a Linux environment, the driver installation predefines a system DSN. You can modify the DSN by editing the system data sources file (/etc/odbc.ini) and defining the required connection properties.

/etc/odbc.ini

[CData ExcelServices Source] Driver = CData ODBC Driver for SharePoint Excel Services Description = My Description URL = https://myorg.sharepoint.com User = admin@myorg.onmicrosoft.com Password = password File = Book1.xlsx

For specific information on using these configuration files, please refer to the help documentation (installed and found online).

Load the RODBC Package

To use the driver, download the RODBC package. In RStudio, click Tools -> Install Packages and enter RODBC in the Packages box.

After installing the RODBC package, the following line loads the package:

library(RODBC)

Note: This article uses RODBC version 1.3-12. Using Microsoft R Open, you can test with the same version, using the checkpoint capabilities of Microsoft's MRAN repository. The checkpoint command enables you to install packages from a snapshot of the CRAN repository, hosted on the MRAN repository. The snapshot taken Jan. 1, 2016 contains version 1.3-12.

library(checkpoint) checkpoint("2016-01-01")

Connect to SharePoint Excel Services Data as an ODBC Data Source

You can connect to a DSN in R with the following line:

conn <- odbcConnect("CData ExcelServices Source")

Schema Discovery

The driver models SharePoint Excel Services APIs as relational tables, views, and stored procedures. Use the following line to retrieve the list of tables:

sqlTables(conn)

Execute SQL Queries

Use the sqlQuery function to execute any SQL query supported by the SharePoint Excel Services API.

account <- sqlQuery(conn, "SELECT Name, AnnualRevenue FROM Account", believeNRows=FALSE, rows_at_time=1)

You can view the results in a data viewer window with the following command:

View(account)

Plot SharePoint Excel Services Data

You can now analyze SharePoint Excel Services data with any of the data visualization packages available in the CRAN repository. You can create simple bar plots with the built-in bar plot function:

par(las=2,ps=10,mar=c(5,15,4,2)) barplot(account$AnnualRevenue, main="SharePoint Excel Services Account", names.arg = account$Name, horiz=TRUE)