You need to investigate some performance issues on an Oracle database, but you have no access to Oracle Enterprise Manager (OEM), or what is worse, not even to SQL*Plus. Where do you start? What is the first query you ask the DBA to execute for you? What is your second and third? Do you request an AWR report? For which snapshots? This scenario is not uncommon or unheard, it happens often to 3rd party consultants, or even to internal DBAs and Developers when the administration of the database has been subcontracted and access has been restricted.
Performance is not the only case where you may need to reach a database and struggle with access; doing a database health-check or collecting historical performance for a capacity planning exercise may face the same issues. What you wish you had is access to a restricted SQL*Plus account, even if remote, and a toolset to collect as much information as possible from the database of interest; or to ask a DBA with access to this database to simply run this toolset and give you back all the output so you can find answers to most of your questions.
eDB360 is a free tool that installs nothing on the database, executes through a SQL*Plus connection, and produces a zip file with a comprehensive report that provides a 360-degree view of an Oracle database. This session is about edb360. It covers what is included on its output, how you execute this tool, and how it can be used to gain a fair understanding of an Oracle database. This session is for DBAs, Developers and Consultants.
1. Learn how to get a fair 360-degree view of a database
2. Gather enough database information to start a health-check
3. Learn which performance to collect for a sizing exercise