Hi Team,
I am a beginner, Recently we ran into a performance issue where in query ran for 3 hours but as earlier it was running in14 min . B the ut anyhow when it completed
all suggested me to look into AWR report to find the problem..
Its little complicated to read the AWR report . Can any one suggest me the below
1) best way to read the AWR report
2) what sections should one be more focussed on
3) what are wait events
Thanks