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Data engineering interview questions
Snowflake: Types of Caching, Time Travel vs. Fail-safe, Snowpipe, Materialized Views
Solve a coding question related to window functions using SQL and PySpark.
Solve a problem using a window function in Spark or SQL.
Solve a query using window functions and GROUP BY to rank or aggregate data.
Solve a running sum query
Solve medium-level SQL questions involving two tables with null values - LEFT JOIN, RIGHT JOIN, INNER JOIN
Spark optimizations: Partitioning, caching, tuning parallelism
Stored Procedure Optimization
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