Process & Analyze Azure Table Data in Databricks (AWS)

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Azure JDBC Driver

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Host the CData JDBC Driver for Azure Table in AWS and use Databricks to perform data engineering and data science on live Azure Table data.

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 Azure Table data. This article walks through hosting the CData JDBC Driver in AWS, as well as connecting to and processing live Azure Table data in Databricks.

With built-in optimized data processing, the CData JDBC Driver offers unmatched performance for interacting with live Azure Table data. When you issue complex SQL queries to Azure Table, the driver pushes supported SQL operations, like filters and aggregations, directly to Azure Table 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 Azure Table data using native data types.

Install the CData JDBC Driver in Databricks

To work with live Azure Table 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.azuretables.jar) from the installation location (typically C:\Program Files\CData\CData JDBC Driver for Azure Table\lib).

Access Azure Table Data in your Notebook: Python

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

Configure the Connection to Azure Table

Connect to Azure Table by referencing the JDBC Driver class and constructing a connection string to use in the JDBC URL.

Step 1: Connection Information

driver = "cdata.jdbc.azuretables.AzureTablesDriver"
url = "jdbc:azuretables:AccessKey=myAccessKey;Account=myAccountName;"

Built-in Connection String Designer

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

java -jar cdata.jdbc.azuretables.jar

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

Specify your AccessKey and your Account to connect. Set the Account property to the Storage Account Name and set AccessKey to one of the Access Keys. Either the Primary or Secondary Access Keys can be used. To obtain these values, navigate to the Storage Accounts blade in the Azure portal. You can obtain the access key by selecting your account and clicking Access Keys in the Settings section.

Load Azure Table Data

Once you configure the connection, you can load Azure Table 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" , "NorthwindProducts") \
	.load ()

Display Azure Table Data

Check the loaded Azure Table data by calling the display function.

Step 3: Checking the result

display (remote_table.select ("Name"))

Analyze Azure Table 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 Azure Table data for reporting, visualization, and analysis.

% sql

SELECT Name, Price FROM SAMPLE_VIEW ORDER BY Price DESC LIMIT 5

The data from Azure Table 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 Azure Table and start working with your live Azure Table data in Databricks. Reach out to our Support Team if you have any questions.