By Peter Wright
Designed to get programmers as much as specialist degrees as quick as attainable, ADO.NET: From beginner to Pro is aimed at builders who've very little .NET or ADO.NET adventure, in addition to programmers who're no longer but pleased with database programming. Best-selling writer Peter Wright painlessly strikes readers from basic database entry to the subtle manipulation of XML documents.
The booklet starts via displaying you the elemental structure of ADO.NET, after which provide you with the instruments you will need to paintings with facts services and the relationship, Command, and DataSet gadgets. Wright then drills down into the themes which are crucial for you as a certified developer to appreciate, together with transactions, concurrency, typed DataSets, and using XML with ADO.NET.
Through quite a few hands-on examples and dealing code that's adaptable to person tasks, you will the best way to create speedy and robust ADO.NET firm functions. by way of the top of this ebook, one could paintings at a certified point using Microsoft's strongest data-access technology.
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Additional resources for ADO.NET: From Novice to Pro, Visual Basic .NET Edition
You create a Connection object first to specify the database and security model you intend to use, and then you call OpenO on that connection. DAO will already know that the string being used here is called a connection string; it defines the machine, the database, and the security settings you want to use to connect to the database. Data Source is used for the machine; Initial Catalog is used for the database on that machine. The Integrated Security setting tells the SQL Server data provider whether or not the application has a secure connection to the database.
SqlClient Imports System. ToString) End Try , To stop the console window vanishing when the app finishes, , prompt the user to press a key WriteLine("Press Enter to continue") ReadLineO End Sub End Module The first thing that should strike you, especially if you have done any work at all with the ADO of old, is just how much code there is to achieve something so simple. Don't be misled; much of the code here just sends text out to the console window to let you know what's going on. Close() Catch ex As Exception , Your exception handler goes here End Try End Sub End Module In fact, if you took out the exception handler, you could get the real meat of the code down to just three lines: one to create the SqlConnection object, another to open the connection, and another to close the connection.
I OatllbaseOiagraml ... Northwlnd)* ~REATE r......... I . . . sd)· I. StoredProcedure l /* ~ ~ ( @parameterl data type = default value, @parameter2 data type OUTPUT ) */ AS /* SET NOCOUNT ON */ RETURN Figure 1-12. The SQL Editor appears by default when you choose to add a new stored procedure to your database. Despite the rather bland appearance of the SQL Editor, it wraps up a considerable amount of functionality and power. If you intend to do a lot of work with either SQL Server or the MSDE, then you're soon going to think of Visual Studio's SQL Designer as your new best friend.
ADO.NET: From Novice to Pro, Visual Basic .NET Edition by Peter Wright