Articles tagged walkthrough

19 August 2014
19 August 2014

Execution Plans Part 8: Cost, time, etc.

It’s time to move away from the shape of an execution plan and turn our attention to some of the numerical information we get from the plan. In this article we’re going to look only at the predictions that the optimizer makes (explain plan), postponing any investigation of actual run-time figures (v$sql_plan_statistics_all) for future instalments. Getting Started As a referenc… Read more