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Overview of ADO.NET Whidbey

Explore the latest advancements in ADO.NET Whidbey, including database support, asynchronous operations, MARS, and more. Get insights into connection string management and CLR integration within Sql Server 2005.

theodore-estes
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Overview of ADO.NET Whidbey

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  1. Scalable Development, Inc. Building systems today that perform tomorrow. Overview ofADO.NET Whidbey Wallace B. McClure Scalable Development, Inc.

  2. EVERYTHING IS BETA. • Your mileage may vary. • Anything may change between now and shipment. • December CTP of Sql Server 2005. • Many thing will change between now and Beta 3.

  3. Background • Microsoft MVP. • AspInsider. • Author.

  4. .NET Experiences • PDC 2000 Build (July, 2000). • Book work. • Visual Studio Betas. • Sql Server Betas. • Production applications. • “Professional Programming with ADO.NET Version 2 using Sql Server, Oracle, and MySql.”

  5. ADO.NET Whidbey Overview • Favorite Objects are still there. • Connections. • Commands • Datasets, DataTables, DataColumns, etc…. • Evolutionary, not revolutionary.

  6. What databases are supported? • Sql Server - Client. System.Data.SqlClient. • Sql Server - Server. System.Data.Sql & System.Data.SqlServer. • Oracle. System.Data.OracleClient. • ODBC. System.Data.Odbc. • OleDb. System.Data.OleDb.

  7. FYI – Announced Server support for CLR Objects • IBM DB/2 8.2 – Shipping with support for .NET 1.1. • Sql Server 2005 – Ship in 2005 with support for .NET 2.0. • Oracle 10g Release 2 – Ship in 2005

  8. New Features of ADO.NET • Asynchronous operations. • MARS (Sql Server 2005 only). • DataType Improvements. • Connection string manager. • Inside the database with Sql Server 2005.

  9. Asynchronous Operations • BeginABC/EndABC style. • Type of operations. • ExecuteNonQuery. • ExecuteReader. • ExecuteXmlReader. • Example.

  10. Asynchronous Operations • Less need for managed threads. • Built into .NET 2.0. • Not thread safe. • Yukon supports multiple commands per connection. • Specific issue with shared memory and Sql 7 & 2k.

  11. Multiple Active Result Sets(MARS) • Multiple open commands on a single connection. • Sql Server 2005 only. • Example.

  12. DataType Improvements • Hard to get the field information through ADO.NET 1.x. • FillSchema() method only returns basic information. • GetProviderSpecificFieldType(). • GetDataTypeName(). • Example.

  13. Connection strings • Connection strings aren’t very object based. • SqlConnectionStringBuilder(). • Key/Value style.

  14. Inside the Sql Server 2005 database with the CLR • CLR Objects. • Triggers. • Stored Procedures. • Functions. • Aggregates. • User Defined Types. • System.Data.Sql & System.Data.SqlServer • Example.

  15. Other features • System.Transactions. • Server enumeration. • Password management. • Bulk Copy. • Provider Statistics. • Caching support.

  16. If you want to know more about ADO.NET Whidbey/Yukon……. • http://weblogs.asp.net/wallym. • http://weblogs.asp.net/despos. • http://weblogs.asp.net/angelsb. • http://msdn.microsoft.com. • http://www.microsoft.com/sql. • “Professional ADO.NET Version 2” due in the summer of 2005. It makes a great gift. Buy 3 or 4 for the ones you love.

  17. Questions? Scalable Development, Inc. Building systems today that perform tomorrow. • Wallace B. McClure • wallym@scalabledevelopment.com. • http://www.scalabledevelopment.com/ • http://weblogs.asp.net/wallym • 865-693-3004. END

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