I need to research what caused a high load in our Oracle database some days ago. I wish to see a list of of high-load SQL statements. We don't use any Oracle tools like ADDM or AWR.
I tried to research AWR tables. Could someone give me any clue which criteria should I put in query?
Best Answer
You might look at trying out Luca Canali's PerfSheet4 tool, which helps extract and visualize data from AWR tables in Excel. It comes with a video and should help you get started with some of the necessary data gathering and analysis for troubleshooting.
You probably want to start with
Query: Top 3 wait events and CPU
option from the sheet which according to the blog post does:You can also look at the queries in the spreadsheet, and use those as examples for your own queries into the AWR tables, should you need something more customized to your particular problem. Hope that helps. =)