Analyze Oracle Financials Cloud Data in R via JDBC

Access Oracle Financials Cloud data with pure R script and standard SQL on any machine where R and Java can be installed. You can use the CData JDBC Driver for Oracle Financials Cloud and the RJDBC package to work with remote Oracle Financials Cloud 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 Oracle Financials Cloud and visualize Oracle Financials Cloud data by calling standard R functions.

Install R

You can match the driver's performance gains from multi-threading and managed code by running the multithreaded Microsoft R Open or by running open R linked with the BLAS/LAPACK libraries. This article uses Microsoft R Open 3.2.3, which is preconfigured to install packages from the Jan. 1, 2016 snapshot of the CRAN repository. This snapshot ensures reproducibility.

Load the RJDBC Package

To use the driver, download the RJDBC package. After installing the RJDBC package, the following line loads the package:

library(RJDBC)

Connect to Oracle Financials Cloud as a JDBC Data Source

You will need the following information to connect to Oracle Financials Cloud as a JDBC data source:

• Driver Class: Set this to cdata.jdbc.oracleerp.OracleERPDriver
• Classpath: Set this to the location of the driver JAR. By default this is the lib subfolder of the installation folder.

The DBI functions, such as dbConnect and dbSendQuery, provide a unified interface for writing data access code in R. Use the following line to initialize a DBI driver that can make JDBC requests to the CData JDBC Driver for Oracle Financials Cloud:

driver <- JDBC(driverClass = "cdata.jdbc.oracleerp.OracleERPDriver", classPath = "MyInstallationDir\lib\cdata.jdbc.oracleerp.jar", identifier.quote = "'") 

You can now use DBI functions to connect to Oracle Financials Cloud and execute SQL queries. Initialize the JDBC connection with the dbConnect function.

Using Basic Authentication

You must set the following to authenticate to Oracle ERP:

• Url: The Url of the account to connect to. Typically, the URL of your Oracle Cloud service. For example, https://servername.fa.us2.oraclecloud.com.
• User: The username of your account.
• Password: The password of your account.

Built-in Connection String Designer

For assistance in constructing the JDBC URL, use the connection string designer built into the Oracle Financials Cloud JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

java -jar cdata.jdbc.oracleerp.jar

Fill in the connection properties and copy the connection string to the clipboard.

Below is a sample dbConnect call, including a typical JDBC connection string:

conn <- dbConnect(driver,"jdbc:oracleerp:Url=https://abc.oraclecloud.com;User=user;Password=password;")

Schema Discovery

The driver models Oracle Financials Cloud APIs as relational tables, views, and stored procedures. Use the following line to retrieve the list of tables:

dbListTables(conn)

Execute SQL Queries

You can use the dbGetQuery function to execute any SQL query supported by the Oracle Financials Cloud API:

invoices <- dbGetQuery(conn,"SELECT InvoiceId, Amount FROM Invoices WHERE Supplier = 'CData Software'")

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

View(invoices)

Plot Oracle Financials Cloud Data

You can now analyze Oracle Financials Cloud 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(invoices$Amount, main="Oracle Financials Cloud Invoices", names.arg = invoices$InvoiceId, horiz=TRUE)