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Questions tagged spark
Teradata to Hadoop migration and handling data with SCD Type 2?
Time and cost comparisons for executing the same query in Snowflake and Spark.
What are Assert Transformations, and where are they used?
What are Slowly Changing Dimensions (SCD), and how would you implement them for tracking customer data changes?
What factors determine the optimal number of partitions for a large file?
What is dynamic partition pruning, and how does it optimize query execution?
What metrics would you analyze to determine if your partitioning strategy is effective?
What technologies are you most comfortable with?
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