Okay, so we all know that problem of SQL-Statements suddenly going AWOL and using a completely different execution plan from what the database has used in the past. Most of the time the database will take the right route by changing the execution plan - but, alas, not always. By using outlines you can force the Oracle database to use the same execution plan regardless of what has changed in the way of statistics or indexes. This entry neatly explains how it works and when you might want to use outlines.
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This page contains a single entry by Paul Lewin published on March 26, 2008 3:42 PM.
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