The following code example creates a DataFrame with city population data and displays the contents of the DataFrame.ĭata = ]Ĭolumns = ĭf1 = spark.createDataFrame(data, schema="rank LONG, city STRING, state STRING, code STRING, population LONG, price DOUBLE") Copy and paste the following code into an empty notebook cell, then press SHIFT+ENTER to run the cell.Open a new notebook and insert a new cell by clicking the icon.Workspace is the root folder that stores your Azure Databricks assets, such as notebooks and libraries.įor guidance about how to navigate a Databricks notebook, see Databricks notebook interface and controls. If you do not have cluster control privileges, you can still complete most of the steps below as long as you have access to a cluster.įrom the left sidebar on the landing page, you access Azure Databricks entities: the workspace browser, catalog, workflows, and compute. You have permission to create a cluster.You are logged into a Azure Databricks workspace.To complete the following tutorial, you must meet the following requirements. Spark DataFrames and Spark SQL use a unified planning and optimization engine, allowing you to get nearly identical performance across all supported languages on Azure Databricks (Python, SQL, Scala, and R). Apache Spark DataFrames provide a rich set of functions (select columns, filter, join, aggregate) that allow you to solve common data analysis problems efficiently.Īpache Spark DataFrames are an abstraction built on top of Resilient Distributed Datasets (RDDs). You can think of a DataFrame like a spreadsheet, a SQL table, or a dictionary of series objects. What is a DataFrame?Ī DataFrame is a two-dimensional labeled data structure with columns of potentially different types. See also Apache Spark PySpark API reference. Viewing and interacting with a DataFrame. city data using the Apache Spark Python (PySpark) DataFrame API in Azure Databricks.īy the end of this article, you will understand what a DataFrame is and feel comfortable with the following tasks. This article shows you how to load and transform U.S.
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