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While the ActiveX Script task has been demoted, the Script task should be used in its place. Unlike the ActiveX Script task, the Script task allows you to write your scripts with the full-featured Visual Basic .NET programming language (C# is currently not supported for this task). Scripts are written in the Visual Studio for Applications (VSA) environment, which includes IntelliSense, debugging, and integrated help modules. Making use of the .NET Framework and COM objects exposes obvious performance and functionality benefits. In the following example, you will use the Script task to combine multiple files in a directory into a single file (so that it can be imported by the hypothetical application). You will reuse part of the project and package you created for the earlier example demonstrating the use of the Foreach Loop container. As you recall, this package looped through each error file in the C:\Program Files\ Microsoft SQL Server\MSSQL\LOG directory. For each file it found, a row was inserted into the PendingFileProcess table. With the Script task, you can now perform actions previously not available (or not as easily available) to older scripting languages. In this exercise, you have been asked to loop through each error file and merge them into a new, single, separate file. This way, the external (hypothetical) application can instead load all errors from a single file.

The way in which this task works is not only interesting but incredibly useful to know Certainly if it isn t performing as expected then you ll probably find the reason in this section The first operation in any task like this is to clean up and homogenize the data so it can be more accurately compared to other data in the overall set This involves performing a number of steps across multiple passes of the data First-pass processing can be described as the cleansing stage: Separating text into words by using spaces, line breaks, and other word terminators in the English language For example, punctuation marks such as and : are wordbreaking characters Preserving words that are connected by hyphens or underscores For example, the words copy-protected and read-only remain one word Keeping intact acronyms that include periods For example, the AB.

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Tip While you proceed through this exercise, consider the different uses for this particular script. For example, SQL Server DBAs and developers often use Visual SourceSafe (VSS) to store their stored procedures and other database objects. When asked to migrate changes, the VSS object checkout process creates several separate files. These files must be separately executed within a query window. You could, however, use a script like the one presented in this exercise to combine all SQL files into a single file.

Besides the usual SQL Server namespaces, note that we include System.IO and System.Text, which contain classes we need for writing the message body, and the Microsoft.Samples.SqlServer namespace, which is where all the classes in the Service Broker Interface reside. The first task for our code is to retrieve the current statistics by executing the uspGetSystemStats procedure. This has a number of output parameters (all of type int) that are populated with the latest figures when the sproc is run, so after we ve opened up the context connection and instantiated the SqlCommand that we re using to execute the sproc, we need to create a SqlParameter for each of these, and set its Direction to ParameterDirection.Output: namespace Apress.SqlAssemblies.11 { public class ServiceBrokerClient { public static void WriteStatsToQueue() { using (SqlConnection cn = new SqlConnection("context connection=true")) { string sql = @"EXEC uspGetSystemStats @connections OUTPUT, @cpuBusy OUTPUT, @idle OUTPUT, @ioBusy OUTPUT,

1. In the SSIS package from the earlier exercise, delete the Execute SQL task contained within the Foreach Loop container. 2. Drag a Script task into the Foreach Loop container.

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