• Dmitri Korotkevitch


It is important to design databases in a way that makes efficient processing and querying of the data possible. That by itself, however, is not enough. We must make sure that the data we get from the database can be trusted. Think about an Order Entry system, for example. We can query the OrderLineItems table to get the information about products we sold, but we cannot trust the results unless we know that the table has no orphaned rows that do not belong to any orders in our system.


Unique Constraint Execution Plan Query Optimizer Database Design Unique Index 
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Copyright information

© Dmitri Korotkevitch 2016

Authors and Affiliations

  • Dmitri Korotkevitch
    • 1
  1. 1.TampaUSA

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