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Use JayDeBeApi to access Hive Data in Python


Use standard Python scripting and the development environment of your choice to access live Hive data.

Access Hive data with Python scripts and standard SQL on any machine where Python and Java can be installed. You can use the CData JDBC Driver for Apache Hive and the JayDeBeApi module to work with remote Hive data in Python. By using the CData Driver, you are leveraging a driver written for industry-proven standards to access your data in the popular Python language. This article shows how to use the driver to execute SQL queries to Hive and visualize Hive data with standard Python.

Use the JayDeBeApi module

JayDeBeApi is a Python library that serves as a JDBC (Java Database Connectivity) bridge, allowing Python programs to interact with Java databases, including CData JDBC Drivers. Use the pip install command to install the module:

pip install JayDeBeApi

Create the JDBC URL

Once you have JayDeBeApi installed, you are ready to work with Hive data in Python using SQL.

Set the Server, Port, TransportMode, and AuthScheme connection properties to connect to Hive.

Built-in Connection String Designer

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

java -jar cdata.jdbc.apachehive.jar

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

Below is a sample variable assignment, including a typical JDBC connection string:

jdbc_url = "jdbc:apachehive:Server=127.0.0.1;Port=10000;TransportMode=BINARY;"

Access Hive data in Python

With the JDBC URL configured, you only need the absolute path to the JDBC driver JAR file, which is in the "lib" folder in the installation directory ("C:\Program Files\CData[product_name] 20XX\lib\cdata.jdbc.apachehive.jar" on Windows).

NOTE: If you haven't already, set the JAVA_HOME environment variable to the Java installation directory.

Use code similar to the follow to read and print data from Hive:

import jaydebeapi #The JDBC connection string jdbc_url = "jdbc:apachehive:Server=127.0.0.1;Port=10000;TransportMode=BINARY;" username = "****" password = "****" #The absolute Path to the JDBC driver JAR file, typically: jdbc_driver_jar = "C:\Program Files\CData[product_name] 20XX\lib\cdata.jdbc.apachehive.jar" conn = jaydebeapi.connect( "cdata.jdbc.apachehive.jar", jdbc_url, [username, password], jdbc_driver_jar, ) cursor = conn.cursor() cursor.execute("SELECT * FROM Customers;") results = cursor.fetchall() for row in results: print(row) cursor.close() conn.close()

Free trial & more information

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