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Hands-On Microsoft SQL Server 2008 Integration Services part 18. Deploy and manage high-performance data transformation solutions across your enterprise using the step-by-step techniques in this fully revised guide. Hands-On Microsoft SQL Server 2008 Integration Services, Second Edition explains the tools and methods necessary to extract conclusive business intelligence from disparate corporate data. Learn how to build and secure packages, load and cleanse data, establish workflow, and optimize performance. Real-world examples, detailed illustrations, and hands-on exercises are included throughout this practical resource. . | 148 Hands-On Microsoft SQL Server 2008 Integration Services Review In this Hands-On exercise you learned to use the FTP task to download multiple files from a remote FTP server. You have hard-coded file paths for the RemotePath and LocalPath fields in this exercise. However you can use variables to change these folders dynamically during run time and download or upload files to different folders each time the package is run. For example you can download files to the folders derived on the basis of date for instance the folder name includes the date as a part of the name such as Zip20091011 . So in that case when the package is run the path variable is calculated dynamically based on the current date and loads the files to the current date folder. Variables are not the only means to derive values dynamically. SSIS enables you to derive values dynamically at run time based on the outcome or values generated by other tasks using property expressions as well that do not necessarily contain variables in their expressions. You have been introduced to the property expressions in Chapter 3 and will learn more about them in Chapter 8. Execute Process Task Generally enterprises have home-grown or custom-developed applications to apply business processes to the information they deal with. These applications might be to make sure that the information goes to right people in the right format after corporate standards are applied on to it or it might be a custom application to transform a mainframe encrypted and compressed such as EBCDIC format file into a standard text format file. The company might wish to reuse the functionality that already exists and has been accepted within the corporate setting. Integration Services allows you to leverage your existing investment and bring those processes in the workflow within the packages by using the Execute Process task. With this task you can run a business application or a batch file to perform specific business functions that .
