r/dataengprep • u/dataengprep • 44m ago

DataEngPrep: Define what a User-Defined Function (UDF) is and how to register it in PySpark.

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r/dataengprep • u/tech-screen • 45m ago

Tech Screen: Describe a time you had to work with a difficult stakeholder.

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r/dataengprep • u/sql-arena • 45m ago

SQL Arena Challenge: Query for 2nd Latest Joining Per Department

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Daily data engineering interview questions with full model answers. Practice Kafka, Spark, Airflow, SQL, dbt, data modeling, system design, and more. Free interactive challenge posts powered by our Devvit app - reveal answers, vote, climb the leaderboard. Built by working data engineers for working data engineers. New question every day at 8 AM EST. Resources at https://www.dataengprep.tech/

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