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Method and apparatus for re-evaluating execution strategy for a database query

  • US 20060074874A1
  • Filed: 09/30/2004
  • Published: 04/06/2006
  • Est. Priority Date: 09/30/2004
  • Status: Active Grant
First Claim
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1. A method for executing a database query in a computer system, comprising the steps of:

  • invoking a database query;

    automatically assigning a primary query execution strategy to the database query;

    executing said database query according to said primary execution strategy;

    automatically monitoring execution of said primary execution strategy while performing said execution step to detect a condition indicating that said primary execution strategy is sub-optimal; and

    responsive to detecting a condition indicating that said primary execution strategy is sub-optimal, automatically initiating an alternate execution strategy for executing said database query.

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