this print for content only—size & color not accurate 7.5 x 9.25 spine = x.xxx" xxx page count Zehoo for Oracle Database 11g ODP .NET The eXPeRT’s VOIce ® In ORAcLe Pro ODP .NET for Oracle Database 11g cYAn MAGenTA YeLLOW BLAcK PAnTOne 123 c Edmund Zehoo Companion eBook Available Everything you need to work with Oracle Database from Microsoft .NET BOOKs fOR PROfessIOnALs BY PROfessIOnALs ® Pro ODP .NET for Oracle Database 11g Dear Reader, Oracle Data Provider (ODP.NET) is a managed provider from Oracle enabling .NET programmers to access the full feature set of the Oracle database with speed and efficiency. Beginning with .NET 4.0, Microsoft’s own access provider for Oracle is deprecated, making ODP.NET the clear choice for access to Oracle from. Microsoft NET. My goal in this book is to help you master ODP.NET by breaking the topic into three easily digestible parts. First I explain how ODP.NET is different from other providers and why you should use it. I walk you gently through the basics of ODP.NET via digestible code snippets that you can quickly understand and test. Next you’ll learn how you can tap powerful features of the Oracle database such as Advanced Queuing, XML and UDT manipulation, globalization, distributed transactions, and more. I show how to use these features, and how to use them efficiently and securely. You will learn how to write lean, performance-optimized code at every level of the data access stack. Finally, I introduce the Oracle Developer Tools (ODT.NET) suite. ODT.NET inte- grates seamlessly with Visual Studio to make writing and debugging easy. You’ll even learn to generate ODP.NET applications on the fly. I’ve had a lot of fun writing this book, and in the process I’ve re-explored and renewed my love for a great product. If you are a .NET developer wanting to write blazing-fast, Oracle Database applications, ODP.NET is a tool you must famil- iarize yourself with. It is simply the fastest and most powerful way to access the Oracle database from the .NET platform. My goal in this book is to have you wield ODP.NET efficiently and confidently in your .NET projects. I wish you a great journey and a fun read ahead. Sincerely, Edmund Zehoo US $59.99 Shelve in: Databases / Oracle User level: Intermediate–Advanced Edmund Zehoo THE APRESS ROADMAP Applied Mathematics For Database Professionals Pro ODP.NET for Oracle Database 11g Oracle SQL Recipes Troubleshooting Oracle Performance Beginning Oracle SQL Beginning Database Design www.apress.com SOURCE CODE ONLINE Companion eBook See last page for details on $10 eBook version ISBN 978-1-4302-2820-2 9 781430 228202 5 59 9 9 Pro www.it-ebooks.info www.it-ebooks.info Pro ODP .NET for Oracle Database 11g Edmund Zehoo www.it-ebooks.info Pro ODP .NET for Oracle Database 11g Copyright © 2010 by Edmund Zehoo All rights reserved. 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President and Publisher: Paul Manning Lead Editor: Jonathan Gennick Technical Reviewer: Stephanie Lim Editorial Board: Clay Andres, Steve Anglin, Mark Beckner, Ewan Buckingham, Gary Cornell, Jonathan Gennick, Jonathan Hassell, Michelle Lowman, Matthew Moodie, Duncan Parkes, Jeffrey Pepper, Frank Pohlmann, Douglas Pundick, Ben Renow-Clarke, Dominic Shakeshaft, Matt Wade, Tom Welsh Coordinating Editor: Anita Castro Copy Editor: Heather Lang Compositor: Bytheway Publishing Services Indexer: Toma Mulligan Artist: April Milne Cover Designer: Anna Ishchenko Distributed to the book trade worldwide by Springer-Verlag New York, Inc., 233 Spring Street, 6th Floor, New York, NY 10013. Phone 1-800-SPRINGER, fax 201-348-4505, e-mail orders-ny@springer-sbm.com, or visit www.springeronline.com. For information on translations, please e-mail rights@apress.com, or visit www.apress.com. 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You will need to answer questions pertaining to this book in order to successfully download the code. www.it-ebooks.info To my family, for you are truly all I have. www.it-ebooks.info CONTENTS Contents at a Glance Contents at a Glance iv Contents v About the Author xvii About the Technical Reviewer xviii Acknowledgments xix Chapter 1: Introduction to Oracle .NET Connectivity 1 Chapter 2: ODP.NET: A Functional Overview 19 Chapter 3: Connecting to Oracle with ODP.NET 49 Chapter 4: Retrieving and Manipulating Data with ODP.NET 69 Chapter 5: Using PL/SQL and .NET CLR Stored Procedures with ODP.NET 117 Chapter 6: ODP.NET Globalization 161 Chapter 7: Transactions with ODP.NET 187 Chapter 8: Oracle Database Change Notifications with ODP.NET 205 Chapter 9: Using Oracle Database Streams Advanced Queuing with ODP.NET 223 Chapter 10: Oracle XML Support 253 Chapter 11: ODP.NET Security Features 287 Chapter 12: ODP.NET Performance 317 Chapter 13: Design Patterns and Considerations in Using ODP.NET 351 Chapter 14: ODT.NET Tool Basics 373 Chapter 15: Building Data-Driven Applications with ODT.NET 401 Index 429 iv www.it-ebooks.info Contents Contents at a Glance iv Contents v About the Author xvii About the Technical Reviewer xviii Acknowledgments xix Chapter 1: Introduction to Oracle .NET Connectivity 1 Making the Transition from SQL Server to Oracle 2 Introducing Oracle Connectivity 3 Accessing Oracle from Unmanaged Code 4 Using OLEDB in Unmanaged Code 5 Oracle Provider for OLEDB 5 MS OLEDB Provider for Oracle 6 Using ODBC in Unmanaged Code 6 Oracle ODBC Driver 6 Microsoft ODBC for Oracle 7 Using OO4O in Unmanaged Code 7 Accessing Oracle from Managed Code 8 Using OLEDB.NET in Managed Code 8 Using ODBC.NET in Managed Code 9 Using the Microsoft .NET Managed Provider for Oracle 11 Introducing ODP.NET 11 Understanding the ODP.NET Architecture 12 v www.it-ebooks.info CONTENTS Understanding the ODP.NET Classes 12 Accessing Data using ODP.NET 13 Using ODP.NET in ASP.NET Projects 13 Considering ODP.NET Performance 15 Introducing the Oracle Suite of Products 15 Summary 17 Chapter 2: ODP.NET: A Functional Overview 19 Exploring Oracle Features Accessible in ODP.NET Version 9 19 Manipulating XML 20 Manipulating LOBs 20 Using PL/SQL Associative Array Binding 21 Supporting Active Data Objects (ADO.NET) 2.0 22 Accessing Oracle Features from ODP.NET Version 10 22 Supporting Oracle Grids 23 Supporting Multiple Oracle Homes 23 Using Floating Point Data Types 24 Using Statement Caching 24 Supporting Command Cancellation and Timeout 25 Retrieving Parameters Programmatically 26 Supporting .NET Stored Procedures 26 Using Client Identifiers 26 Using Database Change Notifications 27 Managing Connection Pools 28 Optimizing Connection Pools for RAC 28 Using a REF Cursor as an IN/OUT Parameter 29 Using 64-bit ODP.NET 29 Controlling the FetchSize Property 29 Configuring ODP.NET 30 vi www.it-ebooks.info CONTENTS Accessing Oracle Features from ODP.NET Version 11 30 Enhancing Performance 31 Deploying ODP.NET Using xcopy 31 Supporting Oracle User Defined Types (UDTs) 31 Performing Bulk Copy Operations 32 Using Windows Authenticated User Connections Pooling 32 Publishing Connection Pool Performance Counters 33 Supporting Self-Tuning for Applications 34 Using Oracle Streaming AQ 34 Supporting Promotable Local Transactions 35 Using ODP.NET Security Enhancements 37 Running Callbacks for HA Event Notifications 38 Starting Up and Shutting Down Databases 38 Getting Started 39 Installing Oracle Database 11g 39 Installing ODAC.NET 43 Summary 48 Chapter 3: Connecting to Oracle with ODP.NET 49 Connecting via TNS 49 Understanding the TNSNames.ora file 51 Connecting in Other Ways 52 Connecting Without TNSNames.ora 52 Connecting via EZConnect 53 Learning the ODP.NET Connection Parameters 54 Connecting with Connection Pooling Activated 54 Connecting via Integrated Windows Authentication 57 Connecting with Special Privileges 58 Using Other Connection String Attributes 59 vii www.it-ebooks.info CONTENTS Checking Whether ODP.NET Is Installed 60 Dynamically Building an ODP.NET Connection String 61 Using the OracleConnectionStringBuilder Class 61 Retrieving Available Oracle Data Sources 62 Understanding Transparent Application Failover 62 Enabling TAF in Your Application 63 Using TAF Callbacks 65 Summary 67 Chapter 4: Retrieving and Manipulating Data with ODP.NET 69 Understanding ODP.NET Data Types 69 Creating a Sample Table 73 Retrieving Multiple Rows of Data 76 Retrieving a Single Value 78 Handling NULL Values in ODP.NET 79 Retrieving Data into a Dataset 80 Using Parameterized Queries 81 Updating Data 83 Executing a Single INSERT, UPDATE, or DELETE Statement 84 Committing Dataset Changes to the Database 85 Generating Command Objects 88 Handling Master-Detail Relationships 90 Creating a Second Table 90 Retrieving from Multiple Tables 91 Binding a .NET Form to Your Dataset 92 Committing Changes to Multiple Tables 94 Defining Table Relationships and Constraints in a DataSet 95 Manipulating LOBs and BFILEs 97 viii www.it-ebooks.info [...]... even nondatabase data sources as long as an OLEDB provider is written for it An example of this is the Microsoft Jet OLEDB provider, which is able to retrieve and store data from a Microsoft Excel file using OLEDB Oracle Provider for OLEDB The Oracle Provider for OLEDB (OraOLEDB) is Oracle s de facto standard OLEDB provider for the Oracle database Compared to the Microsoft OLEDB provider for Oracle. .. ODBC for Oracle Microsoft ODBC for Oracle is an ODBC implementation for access to Oracle databases Like the Microsoft OLE DB provider for Oracle, it only supports Oracle database versions up to 7x, with limited support for Oracle 8x It uses a connection string that looks like the following sample: Driver={Microsoft ODBC for Oracle} ;Server=TEST;Uid=edzehoo;Pwd=admin123; Note Microsoft ODBC for Oracle. .. flat file The latest release of ODP.NET features a suite of ASP.NET providers specifically created for the Oracle database, collectively referred to as the Oracle Providers for ASP.NET Table 1-3 lists the various ASP.NET providers and describes what they do Table 1-3 The Oracle Providers for ASP.NET Provider Name Description Oracle Membership This membership provider provides functionality to manage... CHAPTER 1 INTRODUCTION TO ORACLE NET CONNECTIVITY Using the Microsoft NET Managed Provider for Oracle The Microsoft.NET Managed Provider for Oracle is a provider built by Microsoft on top of the OCI API It sits in the call stack as shown in Figure 1-4 It is the closest equivalent to Oracle s ODP.NET provider Figure 1-4 Architectural overview of the Microsoft NET Managed Provider for Oracle Note The Microsoft... NET Managed Provider for Oracle as of June 2009 The provider will still be available in NET Framework 4 to support backward compatibility but will be labeled as deprecated Introducing ODP.NET The Oracle Data Provider for NET (ODP.NET) developed by Oracle is the preferred way to connect to an Oracle database from managed code It works with ADO.NET to provide fast and efficient access to the database Among... the consumer There are numerous OLEDB providers out there; typically, most databases would have an OLEDB driver written specifically for it so that developers can gain access to them For instance, Oracle provides the Oracle provider for OLEDB driver to access Oracle databases, and Microsoft provides the Microsoft SQL Server provider to access Microsoft SQL Server databases OLEDB technology is versatile... SqlDependency OracleError SqlError OracleException SqlException OracleTransaction INTRODUCTION TO ORACLE NET CONNECTIVITY SqlTransaction The OracleConnection class, for example, provides the developer a set of methods to connect to the Oracle database The OracleCommand class allows the developer to set up an SQL statement or stored procedure to execute Finally, the OracleDataAdapter class allows ODP.NET. .. OLEDB Provider for Oracle The Microsoft OLEDB Provider for Oracle (MSDAORA) is Microsoft’s architectural equivalent of the OraOLEDB provider It only supports Oracle database versions up to 7i, with limited support for version 8i Note MSDAORA has been deprecated because it uses OCI version 7.0, which is no longer supported by Oracle Using ODBC in Unmanaged Code ODBC is a standard data access protocol... in your application, because some providers, like the Oracle Objects for OLE (OO4O) provider, do not use ADO/ADO.NET but instead use a proprietary set of classes to access the database In short, it all depends on what you need for your project As an example, if you needed to receive Oracle database change notifications in your project, you would be better off using ODP.NET instead of OLEDB.NET And if... even ODP.NET all translate into OCI calls Even Oracle s own management tools ultimately depend on the OCI Thus, the OCI can be relied on to expose all possible functionality in Oracle With Microsoft’s NET Managed Provider for Oracle recently deprecated, NET developers are now turning to ODP.NET, the managed provider from Oracle that offers exceptional performance and yet exposes all the advanced Oracle . with Oracle Database from Microsoft .NET BOOKs fOR PROfessIOnALs BY PROfessIOnALs ® Pro ODP .NET for Oracle Database 11g Dear Reader, Oracle Data Provider. Databases / Oracle User level: Intermediate–Advanced Edmund Zehoo THE APRESS ROADMAP Applied Mathematics For Database Professionals Pro ODP. NET for Oracle