Let's face it, not to underestimate other database products at all, but for us .NET developers 'SQL Server' is often the same as 'database'. And in the near future the release of SQL Server Yukon makes this even more true. However, the current release of the product is SQL Server 2000, which is also great software and offers many, many features to utilize in our applications.
I had a wonderful chance to have a peek at the newest SQL Server book, The Guru's Guide to SQL Server Architecture and Internals by Ken Henderson, published by Addison-Wesley. Mr. Henderson is a highly regarded author and has written popular titles such as The Guru's Guide to SQL Server Stored Procedures, XML, and HTML (Addison-Wesley) as well as The Guru's Guide to Transact-SQL (Addison-Wesley).
To start with, the book focuses on SQL Server 2000 and is targeted at developers and architects who have familiarity with SQL Server and Windows as well as other SQL Server-related technologies. Deep architectural understanding from SQL Server standpoint is not assumed as the book is intended to provide that. The book continues where documentation and other SQL Server material left off, covering the entire product starting from Windows Fundamentals and ending with undocumented features.