Libros de relational databases

Microsoft SQL server 2000 database development from scratch

BusinessObjects Enterprise Administrator's Guide

Microsoft SQL server 2005

Pro Crystal Enterprise / BusinessObjects XI Programming

Sams teach yourself Oracle PL/SQL in 10 minutes

Introducing relational database

Business objects companion

Oracle Business Intelligence 11g Developers Guide

Relational database technology

Oracle DBA Queries

Data Access Patterns

SQL for Dummies

Schaum's outline of fundamentals of relational databases

Expert one-on-one Oracle

Relational databases

Beginning Microsoft SQL Server 2008 Programming

Oracle data warehousing unleashed

Date on Database

Sybase Architecture and Administration

Practical MongoDB