this print for content only—size & color not accurate spine = 0.835" 440 page count Books for professionals By professionals ® Beginning VB 2008 Databases: From Novice to Professional Dear Reader, This book focuses on accessing databases using VB 2008 as a development tool in conjunction with the new release of Visual Studio 2008 and .NET Framework 3.5. This book will walk you through all the aspects of programming a database with SQL Server 2005, pulling the data into an application developed using VB 2008. As you work your way through this book, you get a chance to explore the concepts covered by creating sample applications in “Try It Out” sections, which will help you apply what you learn to your real-world applications. Following the sample applications, I explain each code statement in “How It Works” sections to help you understand the code. I hope that you will achieve not only knowledge of VB 2008, but also knowledge of SQL Server. I have targeted quite a few database concepts, from the basics to the key T-SQL features of SQL Server. This book will also help you to build your code competency in a gradual manner because I begin with the easy topics before moving on to the complex ones. This book starts from basic application development and goes over the concepts of LINQ and ADO.NET 3.5 and building applications with them. I believe that you will find this book to be an asset in enriching your VB database application development skills, and will provide you with new insights into using VB 2008 with SQL Server. Vidya Vrat Agarwal Vidya Vrat Agarwal, author of Beginning C# 2008 Databases: From Novice to Professional US $44.99 Shelve in Programming Languages/ Visual Basic User level: Beginner–Intermediate Agarwal, Huddleston VB 2008 Databases The eXperT’s Voice ® in .neT Beginning VB 2008 Databases From Novice to Professional cyan MaGenTa yelloW Black panTone 123 c Vidya Vrat Agarwal and James Huddleston Companion eBook Available THE APRESS ROADMAP Accelerated VB 2008 Beginning VB 2008 Beginning ASP.NET 3.5 in VB 2008, Second Edition Beginning VB 2008 Databases Visual Basic 2008 Recipes Pro VB 2008 and the .NET 3.5 Platform, Third Edition Pro WPF with VB 2008 www.apress.com SOURCE CODE ONLINE Companion eBook See last page for details on $10 eBook version ISBN-13: 978-1-59059-947-1 ISBN-10: 1-59059-947-0 9 781590 599471 5 4 4 9 9 James Huddleston Beginning Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Vidya Vrat Agarwal and James Huddleston Beginning VB 2008 Databases From Novice to Professional 9470fmfinal.qxd 3/15/08 2:51 PM Page i Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Beginning VB 2008 Databases: From Novice to Professional Copyright © 2008 by Vidya Vrat Agarwal and James Huddleston All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage or retrieval system, without the prior written permission of the copyright owner and the publisher. ISBN-13 (pbk): 978-1-59059-947-1 ISBN-10 (pbk): 1-59059-947-0 ISBN-13 (electronic): 978-1-4302-0560-9 ISBN-10 (electronic): 1-4302-0560-1 Printed and bound in the United States of America 9 8 7 6 5 4 3 2 1 Trademarked names may appear in this book. Rather than use a trademark symbol with every occurrence of a trademarked name, we use the names only in an editorial fashion and to the benefit of the trademark owner, with no intention of infringement of the trademark. 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For information on translations, please contact Apress directly at 2855 Telegraph Avenue, Suite 600, Berkeley, CA 94705. Phone 510-549-5930, fax 510-549-5939, e-mail info@apress.com, or visit http://www.apress.com. Apress and friends of ED books may be purchased in bulk for academic, corporate, or promotional use. eB ook v ersions and licenses ar e also av ailable for most titles. For more information, reference our S pecial Bulk Sales–eBook Licensing web page at http://www.apress.com/info/bulksales. The information in this book is distributed on an “as is” basis, without warranty. Although every pre- caution has been taken in the preparation of this work, neither the author(s) nor Apress shall have any liability to any person or entity with r espect to any loss or damage caused or alleged to be caused dir ectly or indirectly by the information contained in this work. 9470fmfinal.qxd 3/15/08 2:51 PM Page ii Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com To my sweet little daughter (Pearly) and beloved wife (Rupali). You are precious in my eyes, and honored, and I love you. —Vidya Vrat Agarwal 9470fmfinal.qxd 3/15/08 2:51 PM Page iii Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com 9470fmfinal.qxd 3/15/08 2:51 PM Page iv Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Contents at a Glance About the Authors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi About the Technical Reviewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvii ■CHAPTER 1 Getting Your Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ■CHAPTER 2 Getting to Know Your Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 ■CHAPTER 3 Getting to Know Relational Databases . . . . . . . . . . . . . . . . . . . . . . . . . . 25 ■CHAPTER 4 Writing Database Queries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ■CHAPTER 5 Manipulating Database Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 ■CHAPTER 6 Using Stored Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 ■CHAPTER 7 Using XML. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 ■CHAPTER 8 Understanding Transactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 ■CHAPTER 9 Getting to Know ADO .NET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 ■CHAPTER 10 Making Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 ■CHAPTER 11 Executing Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 ■CHAPTER 12 Using Data Readers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 ■CHAPTER 13 Using Datasets and Data Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225 ■CHAPTER 14 Building Windows Forms Applications. . . . . . . . . . . . . . . . . . . . . . . . . 267 ■CHAPTER 15 Building ASP.NET Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293 ■CHAPTER 16 Handling Exceptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313 ■CHAPTER 17 Working with Events. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331 ■CHAPTER 18 Working with Text and Binary Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . 343 ■CHAPTER 19 Using LINQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365 ■CHAPTER 20 Using ADO .NET 3.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379 ■INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395 v 9470fmfinal.qxd 3/15/08 2:51 PM Page v Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com 9470fmfinal.qxd 3/15/08 2:51 PM Page vi Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Contents About the Authors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi About the Technical Reviewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvii ■CHAPTER 1 Getting Y our Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Obtaining Visual Studio 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installing SQL Ser ver Management Studio Express . . . . . . . . . . . . . . . . . . . . 3 Installing the Northwind Sample Database. . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Installing the Northwind Creation Script . . . . . . . . . . . . . . . . . . . . . . . . 4 Crea ting the Northwind Sample Database . . . . . . . . . . . . . . . . . . . . . . 6 Installing the AdventureWorks Sample Database . . . . . . . . . . . . . . . . . . . . . 9 Installing the AdventureWorks Creation Script . . . . . . . . . . . . . . . . . . . 9 Creating the AdventureWorks Sample Database . . . . . . . . . . . . . . . . 10 Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 ■CHAPTER 2 Getting to Know Your Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Microsoft .NET Framework Versions and the Green Bit and Red Bit Assembly Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Using Microsoft Visual Studio 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Try It Out: Creating a Simple Console Application Project Using Visual Studio 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Ho w It W orks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Using SQL Server Management Studio Express. . . . . . . . . . . . . . . . . . . . . . 20 Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 ■CHAPTER 3 Getting to Know Relational Databases . . . . . . . . . . . . . . . . . . . . 25 What Is a Database?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Choosing Between a Spreadsheet and a Database. . . . . . . . . . . . . . . . . . . 26 vii 9470fmfinal.qxd 3/15/08 2:51 PM Page vii 97a7b91d187e1703ee1e25f687516049 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Why Use a Database?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Benefits of Using a Relational Database Management System. . . . . . . . . 26 Comparing Desktop and Server RDBMS Systems. . . . . . . . . . . . . . . . . . . . 27 Desktop Databases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Server Databases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 The Database Life Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Mapping Cardinalities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Understanding Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Primary Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Foreign Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Understanding Data Integrity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Entity Integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Referential Integrity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Normaliza tion Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Drawbacks of Normalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ■CHAPTER 4 Writing Database Queries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Comparing QBE and SQL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Beginning with Queries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Try It Out: Running a Simple Query . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Common Table Expressions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Try It Out: Creating a CTE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 GROUP BY Clause . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Try It Out: Using the GROUP BY Clause . . . . . . . . . . . . . . . . . . . . . . . . 40 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 PIVOT Operator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 T ry It Out: Using the PIVOT Operator . . . . . . . . . . . . . . . . . . . . . . . . . . 42 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 ROW_NUMBER() Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Try It Out: Using the ROW_NUMBER() Function . . . . . . . . . . . . . . . . . 44 How It Works. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 ■CONTENTSviii 9470fmfinal.qxd 3/15/08 2:51 PM Page viii Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com [...]... 11 0 Benefits of Storing Data As XML 11 0 Understanding XML Documents 11 1 Understanding the XML Declaration 11 2 Converting Relational Data to XML 11 3 Using FOR XML RAW 11 3 Using FOR XML AUTO 11 7... 11 9 Try It Out: Creating a Table to Store XML 11 9 How It Works 11 9 Try It Out: Storing and Retrieving XML Documents 12 0 How It Works 12 1 Summary 12 1 s CHAPTER 8 Understanding Transactions 12 3... http:// dotnetpassion.blogspot.com 9470ch01final.qxd 2/ 21/ 08 2:59 PM Page 1 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com CHAPTER 1 Getting Your Tools T his book is designed to help you learn how to access databases with VB 2008, previously known as VB 9.0 and VB Orcas The development tools used throughout this book are Microsoft Visual Studio 2008 (code-named Visual Studio... ADO.NET 13 8 Summary 14 1 s CHAPTER 9 Getting to Know ADO.NET 14 3 Understanding ADO.NET 14 3 The Motivation Behind ADO.NET 14 4 Moving from ADO to ADO.NET 14 4 ADO.NET Isn’t a New Version... 16 9 Connecting to SQL Server Express with SqlConnection 17 0 Try It Out: Using SqlConnection 17 0 How It Works 17 2 Debugging Connections to SQL Server 17 4 Security and Passwords in SqlConnection 17 5 How to Use SQL Server Security 17 5 Connection... SqlConnection 17 6 Connection Pooling 17 7 Improving Your Use of Connection Objects 17 7 Using the Connection String in the Connection Constructor 17 7 Displaying Connection Information 17 7 Connecting to SQL Server Express with OleDbConnection 18 1 Try It Out: Connecting to SQL Server Express... 18 2 How It Works 18 3 Summary 18 4 s CHAPTER 11 Executing Commands 18 5 Creating a Command 18 5 Try It Out: Creating a Command with a Constructor 18 5 How It Works 18 7... chapters This book is a must for any application developer who wants to interact with databases using VB 2008 and development tools What This Book Covers This book covers Visual Studio 2008, SQL Server 2005, VB 2008, LINQ, and ADO NET 3.5 All these tools and technologies are explained using various concepts and code examples I have also tried to map the type of applications used in this book with the demand... sCONTENTS Working with Stored Procedures in VB NET 10 0 Try It Out: Executing a Stored Procedure with No Input Parameters 10 0 How It Works 10 2 Try It Out: Executing a Stored Procedure with Parameters 10 3 How It Works 10 5 Deleting Stored Procedures ... 12 3 When to Use Transactions 12 4 Understanding ACID Properties 12 4 Transaction Design 12 5 Transaction State 12 6 Specifying Transaction Boundaries 12 6 xi 9470fmfinal.qxd 3 /15 /08 2: 51 PM Page xii . APRESS ROADMAP Accelerated VB 2008 Beginning VB 2008 Beginning ASP.NET 3.5 in VB 2008, Second Edition Beginning VB 2008 Databases Visual Basic 2008 Recipes Pro VB 2008 and the .NET 3.5 Platform, Third. Huddleston Beginning VB 2008 Databases From Novice to Professional 9470fmfinal.qxd 3 /15 /08 2: 51 PM Page i Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Beginning VB 2008 Databases: . count Books for professionals By professionals ® Beginning VB 2008 Databases: From Novice to Professional Dear Reader, This book focuses on accessing databases using VB 2008 as a development tool in