Wait, I thought SQL Developer was for developers?
Yes, but it also provides a ton of features and value for the DBA. So if you’re already in SQL Developer to browse a table or run a query, you can fire up the DBA features under the View menu (and maybe save yourself an alt-tab to your browser and OEM.)
In the meantime, here’s a 36 slide overview to get you interested in learning more.
I also have a few posts on the subject..that is, how to do DBA stuff in SQL Developer: