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

Breakpoints, Debugging the Control Flow


The debugging environment needs more powerful features than a simple logging such as the Progress or Execution Results tab. Breakpoints is one of the popular debugging methods which is very well known by software developers. Fortunately the SSIS has the ability to use breakpoints in Control Flow and in Script Task.

In this recipe, we will show how to use breakpoints in Control Flow. The scenario is that in an Excel file, connection properties of some SQL Servers exists. In a Foreach Loop, we will find out the server which has the most up-to-date version of SQL Server.

Getting ready

Create an Excel file which has connection information (Servername, Username, Password) of more than one existing SQL Servers. Name it serverConnections.xlsx, and place it in the Files folder in the SSIS Project folder.

How to do it...

  1. Create a SSIS project and name it R02_Breakpoints Debugging the Control Flow.

  2. Add the following variables with data types and valid default values...