Someone has asserted to me that the reason why one database is performing better than another (50-100%) is because one has Enterprise Edition and the other has Standard Edition.
Given the same hardware, OS, versions and data - and only using the features available in Standard edition on both. Should you see a performance increase when moving a database to Oracle Enterprise? Has Enterprise been streamlined or is Standard been hobbled?
Is there any Oracle documentation to back the truth about this up?