upc internet akadozik Advanced Query Topics in .NET framework

Paint UPC-A in .NET framework Advanced Query Topics

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Practice 1:

Expand on Exercise 2, Create a Data-Mining Structure from Lesson 1, Administering a SQL Server Service , and add a mining model to the mining structure. This involves assigning an algorithm to the mining structure and then processing the mining structure. To begin with, run the Data Mining Wizard. When specifying the tables, Person.Contact should be the case table and Person.Contact a nested table. Use the Suggest button on the Specify Column Usage page of the wizard to indicate which columns are likely to provide information. Use the Detect button on the to automatically assign the correct content types. When assigning algorithms, use the following:

Objective 1.6: Design queries that use multiple active results sets (MARS)

Practice 1:

Refer to Lesson 2, Querying with Multiple Active Result Sets, Exercise 1, Compare Execution of Queries With and Without MARS. Expand on the exercise by enabling transactions for the code that uses a MARS connection. Intentionally throw an error and ensure that the transaction is rolled back and no updates are made to the database.

Data Mining with SQL Server 2005 by ZhaoHui Tang and Jamie MacLennan (Wiley, 2005) SQL Server Analysis Services http://msdn2.microsoft.com/en-us/library/ms175609.aspx FIX: Error message when you try to use the SqlClient class in an ADO.NET 2.0-based application to connect to an instance of SQL Server 2005: New request is not allowed to start because it should come with valid transaction descriptor http://support.microsoft.com/kb/916002 Installing Sample Integration Services Packages http://msdn2.microsoft.com/en-us/library/ms160898.aspx

How To: Create a Publication (RMO Programming) http://msdn2.microsoft.com/fr-fr/library/ms146941.aspx How To: Creating, Modifying, and Deleting Subscriptions (RMO Programming) http://msdn2.microsoft.com/fr-fr/library/ms147918.aspx How To: Synchronize a Pull Subscription (RMO Programming) http://msdn2.microsoft.com/en-us/library/ms147890.aspx How To: Define an Article (RMO Programming) http://msdn2.microsoft.com/fr-fr/library/ms146883.aspx How to: Create a Push Subscription (RMO Programming) http://msdn2.microsoft.com/en-US/library/ms146863.aspx How to: Synchronize a Push Subscription (RMO Programming) http://msdn2.microsoft.com/en-us/library/ms146910.aspx Multiple Active Result Sets (MARS) in SQL Server 2005 http://msdn2.microsoft.com/en-us/library/ms345109.aspx Asynchronous Command Execution in ADO.NET 2.0 http://www.aspspider.net/resources/Resource244.aspx Asynchronous Command Execution in ADO.NET 2.0 http://msdn2.microsoft.com/en-us/library/ms379553(VS.80).aspx

Summary

Server Management Objects (SMO) enables you programmatic access to all objects in the SQL Server service hierarchy. SMO enables you to perform tasks such as backup and restore of databases, integrity checks, and creation and scheduling of agent jobs. Replication Management Objects (RMO) enables you to programmatically control your replication topology. Even though two assemblies need to be referenced: Microsoft.SqlServer .Rmo and Microsoft.SqlServer.Replication, only one namespace, Microsoft.SqlServer.Replication needs to be referenced in the code. Analysis Management Objects (AMO) enables you to programmatically control your SQL Server Analysis Server (SSAS) objects, which include cubes, dimensions, and mining structures. Multiple Active Result Sets (MARS) is a new feature that enables you to perform multiple database operations using the same connection. This helps to avoid locking that you might have encountered in the past.

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Validating data is one of the most basic tasks in software development. As a result, validation routines tend to be spread all over the application architecture. You are likely to find data validation in the following technologies:

Microsoft Windows Forms applications ASP.NET pages JavaScript embedded in HTML Business components (such as .NET library assemblies or COM components) Databases

Often, there are too few validation routines in the database because many developers trust the validation that is done before the data actually arrives in the database. This chapter covers what type of validation you can perform in the database and how you can implement it, as well as the key aspects of error handling and how to send messages back to the calling application. All examples in this chapter reference objects in a schema called Test. You can create this schema simply by executing the statement CREATE SCHEMA Test; .

Exam objectives in this chapter:

Design code that validates input data and permissions. Design code that detects and reacts to errors. Design user-defined messages to communicate application events.