Recommended books

Favorite data warehousing books
The data warehouse toolkit by Ralph Kimball
The data warehouse lifecycle toolkit by Ralph Kimball
The data warehouse ETL toolkit by Ralph Kimball
Data warehousing fundamentals by Paulraj Ponniah

Favorite SQL books
Expert Oracle Database Architecture by Tom Kyte
Effective Oracle by design by Tom Kyte
Optimizing Oracle performance by Cary Milsap
SQL tuning by Dan Tow
SQL cookbook by Anthony Molinaro
Mastering Oracle SQL by Sanjay Mishra