Introduction In this tutorial, we will show you how to remove the leading and trailing whitespaces from a string column of a PySpark DataFrame. In order to do this, we will use the functions trim(), ltrim() and rtrim() of PySpark. Import Libraries First, we import the following python modules: from...
Introduction In this tutorial, we will explain step-by-step how o read an Excel file into a PySpark DataFrame in Databricks. Configure Cluster First, install on a Databricks cluster the spark-excel library (also referred as com.crealytics.spark.excel). To do this, select your Databricks cluster in the "Compute"...
Introduction In this tutorial, we will show you how to group and concatenate strings in a PySpark DataFrame. In order to do this, we will use the groupBy() method in combination with the functions concat_ws(), collect_list() and array_distinct() of PySpark. Import Libraries First, we import the following...
Introduction Data transformation is a fundamental task in any data analysis or processing pipeline. In the realm of big data processing, Apache Spark has emerged as a powerful framework for handling large-scale data processing tasks efficiently. When it comes to transforming data within Spark, developers often have to choose between...
Introduction In the realm of big data processing, PySpark has emerged as a powerful tool for handling large-scale datasets. Its distributed computing framework allows for efficient processing of massive volumes of data. However, despite its capabilities, performing certain data transformations in PySpark can sometimes be cumbersome and complex. That'...
Introduction As projects grow in size and complexity, it becomes increasingly important to ensure that code remains understandable and easy to work with. One powerful tool for achieving this is the use of type hints. In this tutorial, we will explain why and how to use type hints in Python....
Introduction Data manipulation tasks often involve converting column data types to ensure consistency and accuracy in analysis. In this tutorial, we will show you how to change column types of a Pandas DataFrame. In order to do this, we will use the astype() method, the map() method and the to_...
Introduction Environment variables are used for securely storing and accessing sensitive data, facilitating seamless configuration management across different environments. In this tutorial, we will explore how to work with environment variables in Python. In order to do this, we will use the Python libraries os and python-dotenv. What is an...
Introduction Data manipulation tasks often involve converting column data types to ensure consistency and accuracy in analysis. In this tutorial, we will show you how to change column types of a PySpark DataFrame. In order to do this, we will use the cast() function of PySpark. Import Libraries First, we...