ADO.NET 3.5 Cookbook

Inhaltsverzeichnis Preface 1. Connecting to Data 1.1 Storing Connection Strings 1.2 Building a Connection String 1.3 Connecting to SQL Server 1.4 Connecting to a Named Instance of SQL Server 1.5 Connecting to SQL Server Using an IP Address 1.6 Connecting to SQL Server Using Integrated Security from ASP.NET 1.7 Connecting to an Oracle Database 1.8 Connecting to an OLE DB Data Source 1.9 Connecting to an ODBC Data Source 1.10 Connecting to a Microsoft Access Database 1.11 Connecting to a Password-Protected Microsoft Access Database 1.12 Connecting to a Microsoft Access Database from ASP.NET 1.13 Connecting to a Microsoft Excel Workbook 1.14 Connecting to a Text File 1.15 Changing the Database for an Open Connection 1.16 Setting Connection Pooling Options 1.17 Taking Advantage of Connection Pooling 1.18 Using Transactions with Pooled Connections 1.19 Displaying a Connection Property Dialog Box 1.20 Displaying the Data Link Properties Dialog Box 1.21 Monitoring Connections 2. Working with Disconnected Data Objects 2.1 Creating a DataColumn and Adding It to a DataTable 2.2 Creating a DataTable and Adding It to a DataSet 2.3 Mapping Table and Column Names Between a Data Source and DataSet 2.4 Mapping.NET Data Provider Data Types to.NET Framework Data Types 2.5 Adding a Calculated Column to a DataTable 2.6 Creating a Unique Constraint 2.7 Creating Single- and Multi-Column Primary Keys 2.8 Creating an Autoincrementing Primary Key 2.9 Creating a Foreign Key Constraint 2.10 Creating a Data Relation 2.11 Building a DataSet Programmatically 2.12 Adding a Column to a Child DataTable That Displays Data from the Parent Table 2.13 Adding a Column to a Parent DataTable That Aggregates a Child Table's Column Values 2.14 Converting Between a DataTable and a DataRow Array 2.15 Accessing Data Values in a DataRow Array 2.16 Creating a Strongly Typed DataSet 2.17 Controlling the Names Used in a Strongly Typed DataSet 2.18 Replacing Null Values in a Strongly Typed DataSet 3. Querying and Retrieving Data 3.1 Executing a Query That Does Not Return a Result Set 3.2 Executing a Query That Returns a Single Value 3.3 Retrieving a Result Set Stream Using a DataReader 3.4 Accessing Data Values in a DataReader 3.5 Retrieving a Result Set Using a DataTable or a DataSet 3.6 Accessing Data Values in a DataTable or DataSet 3.7 Working with Data in a Strongly Typed DataSet 3.8 Working with Parent-Child Relations in a Strongly Typed DataSet 3.9 Using a DataView with a Strongly Typed DataSet 3.10 Testing Whether a Query Returns an Empty Result Set 3.11 Counting Records Meeting Criteria 3.12 Determining the Number of Records Returned in a DataReader 3.13 Executing a Query That Returns Multiple Result Sets 3.14 Retrieving Schema and Constraints for a DataSet 3.15 Retrieving Hierarchical Data 3.16 Navigating Between Parent and Child Tables in an Untyped DataSet 3.17 Executing a Parameterized Query 3.18 Retrieving Data Using a SQL Server Stored Procedure 3.19 Retrieving Multiple Result Sets Using the Oracle Provider 3.20 Passing a Null Value to a Query Parameter 3.21 Using Table-Valued Types As Parameters 3.22 Retrieving a Return Value from a Stored Procedure 3.23 Retrieving a Stored Procedure Output Parameter 3.24 Raising and Handling Stored Procedure Errors 3.25 Executing a SQL Server Scalar-Valued Function 3.26 Executing a SQL Server Table-Valued Function 3.27 Querying a DataSet Using LINQ 3.28 Querying a SQL Server Database Using LINQ 3.29 Retrieving Data from a Text File 3.30 Retrieving Data from a Microsoft Excel Workbook 3.31 Querying Data Asynchronously with Message Queuing 4. Searching and Analyzing Data 4.1 Determining the Differences in Data Between Two DataSet Objects 4.2 Combining Data from Heterogeneous Data Sources 4.3 Filtering Rows in a DataTable or DataView 4.4 Finding Rows in a DataTable or DataView 4.5 Filtering and Sorting Data in a DataTable 4.6 Filtering Null Field Values in a DataTable 4.7 Accessing Deleted Rows in a DataTable 4.8 Selecting the Top N Rows in a DataTable 4.9 Executing Queries That Use COMPUTE BY 4.10 Using the Shape Language to Retrieve Hierarchical Data 4.11 Retrieving a Random Sample of Records 4.12 Using a Common Table Expression (CTE) 4.13 Executing a Recursive Query 4.14 Retrieving a Ranked Result Set 4.15 Retrieving a Pivot and Unpivot Table 4.16 Invoking a Function for Each Row in a Result Set 5. Adding and Modifying Data 5.1 Using Autoincrementing Columns Without Causing Conflicts 5.2 Getting an Identity Column Value from SQL Server 5.3 Getting an AutoNumber Value from Microsoft Access 5.4 Getting a Sequence Value from Oracle 5.5 Modifying Data in a Microsoft Excel Workbook 5.6 Modifying Data in a Text File 5.7 Retrieving Update Errors 5.8 Adding Parent/Child Rows with Autoincrementing Keys 5.9 Adding Records with a GUID Primary Key 5.10 Inserting Multiple Rows into a Database Table Using T-SQL Row Constructors 5.11 Updating a Data Source with Data from a Different Data Source 5.12 Updating a Primary Key Value 5.13 Getting Stored Procedure Parameter Information at Runtime 5.14 Updating a DataSet with a Many-to-Many Relationship 5.15 Updating Data Asynchronously Using Message Queuing 5.16 Controlling Edits, Deletions, or Additions to Data with a DataView 5.17 Overcoming Keyword Conflicts When Using a CommandBuilder 5.18 Capturing Changes to Data in a SQL Server Database 6. Copying and Transferring Data 6.1 Copying Rows from One DataTable to Another 6.2 Copying Tables from One DataSet to Another 6.3 Converting a DataReader to a DataTable 6.4 Converting a DataReader to a DataSet 6.5 Converting a DataTable to a DataReader 6.6 Converting a DataSet to a DataReader 6.7 Serializing Data 6.8 Deserializing Data 6.9 Merging Data in Two DataSet Objects 6.10 Merging Data in Two Database Tables 6.11 Encrypting a DataSet 6.12 Securing Login Credentials 6.13 Exporting the Results of a Query As a String 6.14 Exporting the Results of a Query to an Array 6.15 Loading an ADO Recordset into a DataSet 6.16 Converting a DataSet to an ADO Recordset 7. Maintaining Database Integrity 7.1 Using Distributed Transactions 7.2 Using Manual Transactions 7.3 Nesting Manual Transactions with the SQL Server.NET Data Provider 7.4 Using ADO.NET and SQL Server DBMS Transactions Together 7.5 Using a Transaction with a DataAdapter 7.6 Avoiding Referential Integrity Problems when Updating Data in Related Tables 7.7 Enforcing Business Rules with Column Expressions 7.8 Retrieving Constraints from a SQL Server Database 7.9 Checking for Concurrency Violations 7.10 Resolving Data Conflicts 7.11 Using Transaction Isolation Levels to Protect Data 7.12 Specifying Locking Hints in a SQL Server Database 8. Programmatically Working with Data in.NET Windows and Web Forms User Interfaces 8.1 Loading Data into and Binding a Field to a Web Forms Control 8.2 Binding Data to a Web Forms Control 8.3 Binding Data to a Web Forms DetailsView Control 8.4 Binding Data to a Web Forms Repeater Control 8.5 Binding Data to a Web Forms DataList Control 8.6 Binding Data to a Web Forms GridView Control 8.7 Modifying and Updating Data in a Web Forms GridView Control 8.8 Binding Data to a Web Forms FormView Control 8.9 Synchronizing Master-Detail Data in a Web Forms Application 8.10 Displaying an Image from a Database in a Web Forms Control 8.11 Localizing Client-Side Data in a Web Forms Application 8.12 Loading Data into and Binding a Field to a Windows Forms Control 8.13 Binding Data to a Windows Forms Control 8.14 Binding Data to a Windows Forms DataGridView Control 8.15 Modifying and Updating Data in a Windows Forms DataGridView Control 8.16 Using Windows Forms BindingNavigator and BindingSource Controls 8.17 Synchronizing Master-Detail Data in a Windows Forms Application 8.18 Displaying an Image from a Database in a Windows Forms Control 8.19 Binding a Group of Radio Buttons to a Windows Forms Data Field 8.20 Searching a Windows Forms DataGridView Control 9. Working with XML Data 9.1 Using an XML File to Save and Load a DataSet or a DataTable 9.2 Using XSD Schema Files to Save and Load a DataSet Structure 9.3 Formatting Column Values When Saving Data As XML 9.4 Creating an XML File That Shows Changes Made to a DataSet 9.5 Synchronizing a DataSet and an XML Document 9.6 Storing and Retrieving XML with a Non-XML Data Type Column 9.7 Working with a SQL Server XML Data Type Column 9.8 Using an XPath Query to Retrieve Data 9.9 Reading XML Data Directly from SQL Server 9.10 Transforming a DataSet Using XSLT 9.11 Filling a DataSet Using an XML Template Query 9.12 Using OpenXML to Update Multiple Changes to SQL Server 10. Optimizing.NET Data Access 10.1 Executing Multiple Commands on a Single Connection 10.2 Executing a SQL Statement Asynchronously 10.3 Executing Simultaneous SQL Statements Asynchronously 10.4 Creating a DataReader Asynchronously 10.5 Filling a DataSet Asynchronously 10.6 Canceling an Asynchronous Query 10.7 Caching Data 10.8 Improving Paging Performance 10.9 XML Bulk Loading with SQL Server 10.10 Bulk Copying with SQL Server 10.11 Improving DataReader Performance with Typed Accessors 10.12 Improving DataReader Performance with Column Ordinals 10.13 Debugging a SQL Server Stored Procedure 10.14 Improving Performance While Filling a DataSet 10.15 Reading and Writing Large-Value Data with SQL Server 10.16 Reading and Writing a SQL Server User-Defined Type (UDT) 10.17 Reading and Writing Oracle Large Data 10.18 Performing Batch Updates with a DataAdapter 10.19 Automatically Refreshing a DataTable Periodically 10.20 Automatically Refreshing a DataTable When Underlying Data Changes 10.21 Retrieving SQL Server Runtime Statistics 10.22 Writing Provider- and Database-Independent Code 11. Enumerating and Maintaining Database Objects 11.1 Enumerating SQL Servers 11.2 Retrieving Database Metadata 11.3 Retrieving Database Schema Information from SQL Server 11.4 Retrieving Column Default Values from SQL Server 11.5 Determining the Length of Columns in a SQL Server Table 11.6 Retrieving a SQL Server Query Plan 11.7 Retrieving SQL Server Column Metadata Without Returning Data 11.8 Creating a New SQL Server Database 11.9 Adding a Table to a SQL Server Database 11.10 Creating a Database Table from a DataTable Schema 11.11 Creating DataSet Relationships from SQL Server Relationships 11.12 Creating a New Microsoft Access Database 11.13 Listing Tables in an Access Database 11.14 Enumerating.NET Data Providers 11.15 Enumerating OLE DB Providers 11.16 Enumerating ODBC Drivers 11.17 Changing a SQL Server User Password 12. SQL Server CLR Integration 12.1 Creating a Stored Procedure 12.2 Creating a Scalar-Valued Function 12.3 Creating a Table-Valued Function 12.4 Creating an Aggregate Function 12.5 Creating a User-Defined Type 12.6 Creating a DML Trigger 12.7 Creating a DDL Trigger Appendix:. What's New in ADO.NET Since Version 1.0 Index