..............Study Only theory Portion .........
1)Database System Concepts By Korth(Recommended):
https://www.cse.iitb.ac.in/~sudarsha/db-book/slide-dir/
Also study from this website:
http://www.eazynotes.com/pages/database-management-system/notes.html
2)Videos for learn Concepts:
http://nptel.ac.in/courses/106106093/