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5.2.04. Querying

  • Boolean expression complexity
    • heavy WHERE clauses
  • Join complexity
    • Normalised databases, many tables
    • Facts distributed across tables
    • Joins required to answer complex questions
  • Function and Analytic complexity
    • Often require non-DBMS functions
    • Smaller queries with interleaved code


‹ 5.2.03. Data Preparationup5.2.05. Data Warehouse ›
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