Problems

Practice data engineering, algorithms, and schema design

ETL pipelines use PySpark execution. Run costs 1 credit, Submit costs 3 credits.
#TitleLanguages
1Star Schema Fact Table Build
PySpark
Hard35%
2Late-Arriving Fact Records
PySpark
Hard67%
3Data Quality Pipeline
PySpark
Hard65%
4Employee Salary Ranking
PySpark
Medium75%
5Schema Evolution Handling
PySpark
Medium89%
6Slowly Changing Dimension Type 2
PySpark
Hard29%
7Pivot Sales Metrics
PySpark
Medium88%
8Incremental Data Load
PySpark
Medium31%
9Customer Record Deduplication
PySpark
Medium90%
10Multi-File Sales Union
PySpark
Easy71%
11JSON Event Flattening
PySpark
Easy84%
12CSV to Data Warehouse
PySpark
Easy70%
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