Grokking Database Fundamentals for Tech Interviews
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Distributed Query Processing
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What is Distributed Query Processing?

In a distributed database system, data is not stored in a single location but distributed across multiple nodes or servers. Distributed query processing ensures that queries are executed by fetching, aggregating, and combining data from these nodes, providing the user with a unified result.

  • Key Goals:
    • Minimize the amount of data transferred between nodes.
    • Optimize query execution time by leveraging parallelism.
    • Ensure data consistency and correctness in results.

Steps in Distributed Query Processing

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