Am a newbie to Database admin. How can I get free oracle e-books online or other database admin e-books.
thanks for your help guys.

I hate to cross post as I gave this already at https://www.nairaland.com/nigeria/topic-28642.64.html#msg881289
but here are links you need for oracle software and documentations towards certification

You can download the personal edition of Oracle 10G(DB clustering and some form of application embedding is disabled)
http://www.oracle.com/technology/software/products/database/xe/index.html

For Oracle 10G certifications you can download all the guides and manuals here
http://www.oracle.com/please/db102/homepage


You get tutorials and tons of examples and tips here
http://www.oracle.com/technology/training/index.html

If you sign up for a free account at Oracle University you get even more articles from the experts at
http://education.oracle.com/web_prod-plq-dad/plsql/show_desc.redirect?redir_type=3&p_org_id=&lang=&source_call=global


All in all you get everything you need to pass each step in your certification plus an online support community, and all for free, and all thanks to the good folks at Oracle.