Process & Analyze Oracle HCM Cloud Data in Databricks (AWS)

Databricks is a cloud-based service that provides data processing capabilities through Apache Spark. When paired with the CData JDBC Driver, customers can use Databricks to perform data engineering and data science on live Oracle HCM Cloud data. This article explains how to host the CData JDBC Driver in AWS, as well as connect to and process live Oracle HCM Cloud data in Databricks.

With built-in optimized data processing, the CData JDBC Driver offers unmatched performance for interacting with live Oracle HCM Cloud data. When you issue complex SQL queries to Oracle HCM Cloud, the driver pushes supported SQL operations, like filters and aggregations, directly to Oracle HCM Cloud and utilizes the embedded SQL engine to process unsupported operations client-side (often SQL functions and JOIN operations). Its built-in dynamic metadata querying allows you to work with and analyze Oracle HCM Cloud data using native data types.

Install the CData JDBC Driver in Databricks

To work with live Oracle HCM Cloud data in Databricks, install the driver on your Databricks cluster.

1. Navigate to your Databricks administration screen and select the target cluster.
2. On the Libraries tab, click "Install New."
3. Select "Upload" as the Library Source and "Jar" as the Library Type.
4. Upload the JDBC JAR file (cdata.jdbc.oraclehcm.jar) from the installation location (typically C:\Program Files\CData[product_name]\lib).

👁 Loading the JDBC JAR File into AWS

Access Oracle HCM Cloud Data in your Notebook: Python

With the JAR file installed, we are ready to work with live Oracle HCM Cloud data in Databricks. Start by creating a new notebook in your workspace. Name the notebook, select Python as the language (though Scala is available as well), and choose the cluster where you installed the JDBC driver. When the notebook launches, we can configure the connection, query Oracle HCM Cloud, and create a basic report.

Configure the Connection to Oracle HCM Cloud

Connect to Oracle HCM Cloud by referencing the JDBC Driver class and constructing a connection string to use in the JDBC URL. Additionally, you will need to set the property in the JDBC URL (unless you are using a Beta driver). You can view the licensing file included in the installation for information on how to set this property.

Step 1: Connection Information

driver = "cdata.jdbc.oraclehcm.OracleHCMDriver"
url = "jdbc:oraclehcm:RTK=5246...;Url=https://abc.oraclecloud.com;User=user;Password=password;"

Built-in Connection String Designer

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

java -jar cdata.jdbc.oraclehcm.jar

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

Using Basic Authentication

You must set the following to authenticate to Oracle HCM Cloud:

• Url: The Url of your account.
• User: The user of your account.
• Password: The password of your account.

👁 Using the built-in connection string designer to generate a JDBC URL (Salesforce is shown.)

Load Oracle HCM Cloud Data

Once you configure the connection, you can load Oracle HCM Cloud data as a dataframe using the CData JDBC Driver and the connection information.

Step 2: Reading the data

remote_table = spark.read.format ( "jdbc" ) \
	.option ( "driver" , driver) \
	.option ( "url" , url) \
	.option ( "dbtable" , "RecruitingCESites") \
	.load ()

Display Oracle HCM Cloud Data

Check the loaded Oracle HCM Cloud data by calling the display function.

Step 3: Checking the result

display (remote_table.select ("SiteId"))

👁 Displaying Oracle HCM Cloud Data

Analyze Oracle HCM Cloud Data in Databricks

If you want to process data with Databricks SparkSQL, register the loaded data as a Temp View.

Step 4: Create a view or table

remote_table.createOrReplaceTempView ( "SAMPLE_VIEW" )

With the Temp View created, you can use SparkSQL to retrieve the Oracle HCM Cloud data for reporting, visualization, and analysis.

% sql

SELECT SiteId, SiteName FROM SAMPLE_VIEW ORDER BY SiteName DESC LIMIT 5

👁 Displaying Oracle HCM Cloud Data

The data from Oracle HCM Cloud is only available in the target notebook. If you want to use it with other users, save it as a table.

remote_table.write.format ( "parquet" ) .saveAsTable ( "SAMPLE_TABLE" )

Download a free, 30-day trial of the CData JDBC Driver for Oracle HCM Cloud and start working with your live Oracle HCM Cloud data in Databricks. Reach out to our Support Team if you have any questions.