Book excerpt: As your essential guide to Microsoft’s new SQL Server 2005 certification (exam 70-442), this book offers you practical and in-depth coverage. Full coverage of all exam objectives is presented in a systematic approach so you can be confident you’re getting the instruction you need for the exam. Plus, practical hands-on exercises reinforce critical skills and real-world scenarios put what you’ve learned in the context of actual job roles. Finally, challenging review questions in each chapter prepare you for exam day.