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Analysis method and apparatus for a parallel system

  • US 6,738,756 B1
  • Filed: 06/30/2000
  • Issued: 05/18/2004
  • Est. Priority Date: 06/30/2000
  • Status: Expired due to Term
First Claim
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1. A method of testing a target system, comprising:

  • receiving information relating to an environment of the target system;

    storing cost data based on the environment information;

    determining a query plan based on the cost data; and

    defining one or more diagnostic SQL statements to activate use of the cost data;

    wherein defining the one or more diagnostic SQL statements comprises defining a diagnostic Dump Costs statement to dump cost data, based on environment information of the target system, into a test system.

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