Any one please suggest where i can learn oracle database from start ??

Answer 1

The complete reference - Oracle press.
Ebook available for free on Oracle website.
current version Oracle 12g. use 11g if 12g is not available

Answer 2

yes. all available on the website. you need to look for installation guide.
try oracle 12 g XE (express edition)

Answer 3

i need all how to install and all the complete oracle dba course. all available on there official site?

Answer 4

okay bro thanx