WAIUG Part 3 - Explaining Explain Plans by Mike Walker
WAIUG Meeting Part 3
Explaining Explain Plans by Mike Walker
Query execution plans are the best tool to give a detailed insight into exactly how a query is being run by Informix.
They are the first stop when trying to understand just why a query is running slower than expected.
With additional information on the Informix 14 Badge Exam
In this presentation, Mike Walker will show how to obtain a query plan and how to interpret it.
He will also describe what he looks for in the plan that shows where their tuning opportunities are hiding.