SQL Performance (MOSC)

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SQL Tuning Task

edited Jan 9, 2014 3:38AM in SQL Performance (MOSC) 2 commentsAnswered
 I'm new to Oracle and the ADDM.  I've used the ADDM to compare explain plans for a couple of SQL queries that are running very slow.  My question is if I implement a new explain plan can it be removed?  If so, where in OEM could it be deleted?
Also, if the SQL statement changes, even slightly, would this new explain plan be invalidated and no longer used?  What if the only changes were to the columns selected?

Thanks in advance for your help.

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