Dear DBAs,

please share me some real time application performance tuning scenario , what SQL tuning issues you have faced and how did you solve or give me links or books name which can help me.i know

AWR,ADDM ,statpack ,explain plan ,CBO optimizer concepts, but here in our environment i don't get any real time application performance problems. As per my experience, i am being asked a lot of questions from application (SQL) tunifg in interviews.

Thanks a lot in advance