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Piotr Lewandowski,@constjs
AdventureWorks - Sample database prepared by Microsoft for their trainings.
- Aggregate function with OVER () clause
- Don't need GROUP BY
- Can access data from other rows / frames
- Data manipulation
- Moving averages
- Cumulative sum
- Division of set (ranks or buckets)
PostgreSQL, MS SQL Server, Oracle, DB2, H2
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📖 Support examples for learning Window Functions in PostgreSQL. Ready to run.
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