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course: Apache Flink® 101

Stateful Stream Processing with Flink SQL

5 min
David Anderson

David Anderson

Software Practice Lead

Stateful Stream Processing with Flink SQL


Flink SQL is organized around providing alternatives to queries where the runtime might have to maintain an ever-growing amount of state in order to provide correct results. This video explains which queries are potentially problematic, and why.


  • Stateless Queries
  • Materializing Queries
  • Temporal Queries


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