Book Image

Microsoft SQL Server 2012 Integration Services: An Expert Cookbook

Book Image

Microsoft SQL Server 2012 Integration Services: An Expert Cookbook

Overview of this book

SQL Server Integration Services (SSIS) is a leading tool in the data warehouse industry - used for performing extraction, transformation, and load operations. This book is aligned with the most common methodology associated with SSIS known as Extract Transform and Load (ETL); ETL is responsible for the extraction of data from several sources, their cleansing, customization, and loading into a central repository normally called Data Warehouse or Data Mart.Microsoft SQL Server 2012 Integration Services: An Expert Cookbook covers all the aspects of SSIS 2012 with lots of real-world scenarios to help readers understand usages of SSIS in every environment. Written by two SQL Server MVPs who have in-depth knowledge of SSIS having worked with it for many years.This book starts by creating simple data transfer packages with wizards and illustrates how to create more complex data transfer packages, troubleshoot packages, make robust SSIS packages, and how to boost the performance of data consolidation with SSIS. It then covers data flow transformations and advanced transformations for data cleansing, fuzzy and term extraction in detail. The book then dives deep into making a dynamic package with the help of expressions and variables, and performance tuning and consideration.
Table of Contents (23 chapters)
Microsoft SQL Server 2012 Integration Services: An Expert Cookbook
Credits
Foreword
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Foreach Loop Container: looping through data table


One of the enumerators in Foreach Loop is the Item Enumerator. This enumerator has the ability to create a temporary table in the SSIS Foreach Loop Container itself to use as the iteration list. This option will remove the need for an external temporary storage as we saw in the Foreach Loop Container: looping through result set of a database query recipe of this chapter.

In this recipe, we will reveal another real world sample with Item Enumerator. We will loop through the list of servers with different database names, and load the same data structure from the same table but onto different servers into different excel files which will be named based on the data sources.

Getting ready

  1. For this recipe we need to have both AdventureWorks2012 and AdventureWorksLT2012 together.

  2. Create a R05_Template.xlsx file that only contains two column headers namely, SchemaName and TableName.

How to do it...

  1. Create a SSIS project and name it R05_Foreach Loop Container...