Articles tagged sort join operations

14 May 2014
14 May 2014

Execution Plans Part 4: Precision and Timing

In part 3 of this series we used a simple hash join to introduce the a simple guideline for reading execution plans – the “first child first, recursive descent” method. This allowed us to work out the order in which Oracle produced rowsources and (implicitly) the order in which it visited the different physical objects in the query. At t… Read more