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Questions tagged window
Write a SQL query leveraging window functions and timestamps to identify updates over time
Write a SQL query to calculate the highest salary in each department using a window function
Write a query to generate the specified output using advanced SQL skills with joins, aggregations, and window functions.
Write an SQL query to find the top 3 performing products in each category
Write optimized SQL queries involving window functions, CTEs, and joins.
Conceptualize and design a real-time streaming data pipeline end-to-end.
Describe how you would use PySpark to aggregate and summarize large transaction datasets.
Discuss common transformations used in Spark code.
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