PySpark row_number() – Add Column with Row Number
How do you add a new column with row number (using row_number) to the PySpark DataFrame? pyspark.sql.window module provides a set of functions like row_number(), rank(), and dense_rank() to add a…
How do you add a new column with row number (using row_number) to the PySpark DataFrame? pyspark.sql.window module provides a set of functions like row_number(), rank(), and dense_rank() to add a…
In PySpark, we can create a DataFrame from multiple lists (two or many) using Python's zip() function; The zip() function combines multiple lists into tuples, and by passing the tuple…
In PySpark, to filter the rows of a DataFrame case-insensitive (ignore case) you can use the lower() or upper() functions to convert the column values to lowercase or uppercase, respectively,…
In PySpark, Resilient Distributed Datasets (RDDs) are the fundamental data structure representing distributed collections of objects. RDDs can be created in various ways. Here are some examples of how to…
PySpark startswith() and endswith() are string functions that are used to check if a string or column begins with a specified string and if a string or column ends with…
PySpark SQL contains() function is used to match a column value contains in a literal string (matches on part of the string), this is mostly used to filter rows on…
pyspark.sql.functions module provides string functions to work with strings for manipulation and data processing. String functions can be applied to string columns or literals to perform various operations such as concatenation,…
How to install PySpark on an Ubuntu server running a Linux-based operating system? This article will walk you through the installation process of PySpark on Ubuntu, and the same instructions…
Is it better to have in Spark one large parquet file vs lots of smaller parquet files? The decision to use one large parquet file or lots of smaller parquet…
How to resolve Python: No module named 'findspark' Error in Jupyter notebook or any Python editor while working with PySpark? In Python when you try to import the PySpark library without…