|"What do I have to do to become expert, where is the list of key things I need to do with regards to Oracle"|
This is a question I get on asktom frequently – what are the things I need to know, what do I have to do to become expert, where is the list of key things I need to do with regards to Oracle. It is a hard sounding question that has an easy answer.If you are still wet behind the ears – or even just damp – then the definitive place to start is the Oracle Server Concepts Guide. Not only is this free - but it is your guide to understanding how the database works. If you understand something - you can use that thing. If you don't, well, simply put - you won't be able to effectively use it. Getting a solid knowledge of how a transaction is done, what locking and concurrency controls are and how they work, how the database makes the data durable on disk (redo, undo management) - all of it is key to effectively using the database.
via sathyabhat’s blurblog. More at https://tkyte.blogspot.com/2012/08/the-keys-to-oracle.html