How to connect and process SAP HANA Data from Azure Databricks

 

Install the CData JDBC Driver in Azure

To work with live SAP HANA data in Databricks, install the driver on your Azure 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.saphana.jar) from the installation location (typically C:\Program Files\CData[product_name]\lib).

Connect to SAP HANA from Databricks

With the JAR file installed, we are ready to work with live SAP HANA 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 SAP HANA, and create a basic report.

Configure the Connection to SAP HANA

Connect to SAP HANA by referencing the class for the JDBC Driver and constructing a connection string to use in the JDBC URL. Additionally, you will need to set the RTK 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.

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driver = "cdata.jdbc.saphana.SAPHANADriver"

url = "jdbc:saphana:RTK=5246...;User=system;Password=mypassword;Server=localhost;Database=systemdb;"

Built-in Connection String Designer

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

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java -jar cdata.jdbc.saphana.jar

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

Set the Server, Database and Port properties to specify the address of your SAP Hana database to interact with. Set the User and the Password properties to authenticate to the server.

Load SAP HANA Data

Once the connection is configured, you can load SAP HANA data as a dataframe using the CData JDBC Driver and the connection information.

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remote_table = spark.read.format ( "jdbc" ) \

.option ( "driver" , driver) \

.option ( "url" , url) \

.option ( "dbtable" , "Buckets") \

.load ()

Display SAP HANA Data

Check the loaded SAP HANA data by calling the display function.

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display (remote_table.select ("Name"))

Analyze SAP HANA Data in Azure Databricks

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

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remote_table.createOrReplaceTempView ( "SAMPLE_VIEW" )

The SparkSQL below retrieves the SAP HANA data for analysis.

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% sql

 

SELECT Name, OwnerId FROM Buckets WHERE Name = 'TestBucket'

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

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