Articles tagged

26 March 2014
26 March 2014

Execution Plans Part 2: Things to see

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In part 1 of this series we saw two basic ways of creating, or acquiring, execution plans. The first method gave us the optimizer’s prediction of what it would (possibly) do if you ran the query: explain plan for {sql statement} select * from table(dbms_xplan.display); The second method told us what the optimizer had done after we ran the query… Read more