SQL for Web Nerds
by Philip Greenspun
This is a free online SQL book by Philip Greenspun. It covers data modeling, simple queries, complex queries, transactions, triggers, views, style, PL/SQL and Java, trees, handling dates in Oracle, limits in Oracle, tuning, data warehousing, foreign and legacy data and normalization.
Home page url
Download or read it online for free here:
by Ryan Stephens, Ron Plew - Sams
This book presents the key features of SQL in an easy to understand format with updated code examples. The material covers transactions, constructs, embedded databases, object-oriented programming, and MySQL, a very popular open source database.
In this SQL tutorial, you will learn how to use the SQL language to: Store, retrieve and manipulate data in SQL server; Select, insert, update and delete rows in SQL tables; Create database and tables in SQL server and all other SQL concepts.
by Richard T. Snodgrass - Morgan Kaufmann
Richard Snodgrass and his colleagues have explored temporal data concepts over the last two decades. They now have a fairly complete solution to the problems. This book summarizes their work and presents it in a very accessible and useful way.
by Markus Winand
SQL performance problems are everywhere, everyday. This book is a free SQL tuning e-book for developers. It avoids unnecessary details about database internals but highlights the one topic that is most often neglected: proper indexing.