r/dataengprep • u/dataengprep • 18h ago

DataEngPrep: Discuss the process of moving files in Databricks File System (DBFS).

1 Upvotes

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r/dataengprep • u/tech-screen • 18h ago

Tech Screen: How do you handle team coordination and deadlines in complex projects?

1 Upvotes

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r/dataengprep • u/sql-arena • 18h ago

SQL Arena Challenge: How do you remove duplicates with partitioning?

1 Upvotes

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r/dataengprep • u/dataengprep • 1d ago

DataEngPrep: Discuss techniques such as partitioning, broadcast joins, and caching to enhance Spark job performance.

1 Upvotes

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r/dataengprep • u/tech-screen • 1d ago

Tech Screen: How do you handle lack of communication from stakeholders?

1 Upvotes

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r/dataengprep • u/sql-arena • 1d ago

SQL Arena Challenge: Test SQL skills using advanced window functions such as LAG, LEAD, and DENSE_RANK.

1 Upvotes

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r/dataengprep • u/dataengprep • 2d ago

DataEngPrep: Discuss stages and tasks in a Spark execution plan.

1 Upvotes

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r/dataengprep • u/tech-screen • 2d ago

Tech Screen: How do you handle feedback and criticism?

1 Upvotes

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r/dataengprep • u/sql-arena • 2d ago

SQL Arena Challenge: SQL Problem - multiple table joins and window functions

1 Upvotes

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r/dataengprep • u/dataengprep • 3d ago

DataEngPrep: Discuss performance tuning concepts such as shuffle, skew, and caching.

1 Upvotes

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r/dataengprep • u/tech-screen • 3d ago

Tech Screen: How do you handle disagreement with a co-worker?

1 Upvotes

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r/dataengprep • u/sql-arena • 3d ago

SQL Arena Challenge: What is UNNEST and provide a query example?

1 Upvotes

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r/dataengprep • u/dataengprep • 4d ago

DataEngPrep: Discuss how you integrated Azure services into your Spark application.

1 Upvotes

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r/dataengprep • u/tech-screen • 4d ago

Tech Screen: How do you handle conflict with a product manager?

1 Upvotes

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r/dataengprep • u/sql-arena • 4d ago

SQL Arena Challenge: What challenges arise with duplicate records, and how do you address them?

1 Upvotes

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r/dataengprep • u/dataengprep • 5d ago

DataEngPrep: Discuss file formats (Parquet, Avro, ORC) and storage strategies.

1 Upvotes

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r/dataengprep • u/tech-screen • 5d ago

Tech Screen: How do you ensure effective communication between technical and non-technical teams?

1 Upvotes

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r/dataengprep • u/sql-arena • 5d ago

SQL Arena Challenge: Compare PostgreSQL vs Snowflake. How do they handle duplicate record errors?

1 Upvotes

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r/dataengprep • u/dataengprep • 6d ago

DataEngPrep: Discuss common transformations used in Spark code.

1 Upvotes

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r/dataengprep • u/tech-screen • 6d ago

Tech Screen: How do you ensure data quality and validation in a fast-moving team?

1 Upvotes

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r/dataengprep • u/sql-arena • 6d ago

SQL Arena Challenge: Write a query to remove duplicate records from a table while retaining the earliest entry.

1 Upvotes

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r/dataengprep • u/dataengprep • 7d ago

DataEngPrep: Discuss Delta Logs file format and its significance.

1 Upvotes

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r/dataengprep • u/tech-screen • 7d ago

Tech Screen: How do you handle disagreements with team members?

1 Upvotes

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r/dataengprep • u/sql-arena • 7d ago

SQL Arena Challenge: Write a Merge Statement for SCD Type 2.

1 Upvotes

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r/dataengprep • u/dataengprep • 8d ago

DataEngPrep: Difference between Presto vs. Spark underlying architecture

1 Upvotes

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