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

Access Bullhorn CRM data like you would a database - read, write, and update Bullhorn CRM Candidates, Resumes, Searches, etc. through a standard ODBC Driver interface.

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Analyze Bullhorn CRM Data in R


Create data visualizations and use high-performance statistical functions to analyze Bullhorn CRM data in Microsoft R Open.

Access Bullhorn CRM data with pure R script and standard SQL. You can use the CData ODBC Driver for Bullhorn CRM and the RODBC package to work with remote Bullhorn CRM 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 Bullhorn CRM data and visualize Bullhorn CRM 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 Bullhorn CRM as an ODBC Data Source

Information for connecting to Bullhorn CRM follows, along with different instructions for configuring a DSN in Windows and Linux environments.

Begin by providing your Bullhorn CRM account credentials in the following:

If you are uncertain about your data center code, codes like CLS2, CLS21, etc. are cluster IDs that are contained in a user's browser URL (address bar) once they are logged in.

Example: https://cls21.bullhornstaffing.com/BullhornSTAFFING/MainFrame.jsp?#no-ba... indicates that the logged in user is on CLS21.

Authenticating with OAuth

Bullhorn CRM uses the OAuth 2.0 authentication standard. To authenticate using OAuth, create and configure a custom OAuth app. See the Help documentation for more information.

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 Bullhorn CRM 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 BullhornCRM Source] Driver = CData ODBC Driver for Bullhorn CRM Description = My Description DataCenterCode = CLS33 OAuthClientId = myoauthclientid OAuthClientSecret = myoauthclientsecret

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 Bullhorn CRM Data as an ODBC Data Source

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

conn <- odbcConnect("CData BullhornCRM Source")

Schema Discovery

The driver models Bullhorn CRM 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 Bullhorn CRM API.

candidate <- sqlQuery(conn, "SELECT Id, CandidateName FROM Candidate WHERE CandidateName = 'Jane Doe'", believeNRows=FALSE, rows_at_time=1)

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

View(candidate)

Plot Bullhorn CRM Data

You can now analyze Bullhorn CRM 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(candidate$CandidateName, main="Bullhorn CRM Candidate", names.arg = candidate$Id, horiz=TRUE)