Articles & Content


Unlocking the Mysteries Behind Update Statistics (K13)

Topic: Informix

Subtopic: 2005

DATE: 2005-5-25 (02:00 PM - 03:10 PM)
SPEAKERS: John F. Miller III (IBM)

Understanding the mysteries behind update statistics will enable DBA to drastically reduce the time spent running update statistics. Focusing on what and how the information is collected for the optimizer will allow DBA to tune update statistics. The talk concludes with practical examples of how DBA can get 2x, 3x and even 4x speeds by tuning update statistics.

EXP. LEVEL: Intermediate


Understand Update Statistics

Improvements Made to Update Statistics

Tuning Update Statistics

Pitfalls of Update Statistics

Understanding Distributions

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