Tutorials — Data, Architecture & Cloud
Practical technical tutorials on Power BI, DAX, Azure, Databricks and much more.
Apache Spark
How to remove duplicates in PySpark: step by step
Learn to remove duplicates in PySpark with dropDuplicates and distinct, across all columns or by key, an…
How to aggregate data with groupBy in PySpark
Learn to aggregate data with groupBy in PySpark: count, sum and average by group with simple examples an…
How to join DataFrames in PySpark: step by step
Learn how to join DataFrames in PySpark step by step: inner and left joins, choosing the right join type…
Getting started with PySpark: read and transform data
Getting started with PySpark: create a SparkSession, read a CSV and transform with the DataFrame API, wi…
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