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Microsoft SQL Server 2012 Integration Services: An Expert Cookbook

You're reading from   Microsoft SQL Server 2012 Integration Services: An Expert Cookbook Over 80 expert recipes to design, create, and deploy SSIS packages with this book and ebook

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Product type Paperback
Published in May 2012
Publisher Packt
ISBN-13 9781849685245
Length 564 pages
Edition 1st Edition
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Table of Contents (23) Chapters Close

Microsoft SQL Server 2012 Integration Services: An Expert Cookbook
Credits
Foreword
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Getting Started with SQL Server Integration Services 2. Control Flow Tasks FREE CHAPTER 3. Data Flow Task Part 1—Extract and Load 4. Data Flow Task Part 2—Transformations 5. Data Flow Task Part 3—Advanced Transformation 6. Variables, Expressions, and Dynamism in SSIS 7. Containers and Precedence Constraints 8. Scripting 9. Deployment 10. Debugging, Troubleshooting, and Migrating Packages to 2012 11. Event Handling and Logging 12. Execution 13. Restartability and Robustness 14. Programming SSIS 15. Performance Boost in SSIS Index

Execution from a scheduled SQL Server Agent job


ETL processes can be executed on a schedule, and this schedule can be daily, weekly, or at larger intervals of time. ETL or any Data Transfer process is better done during off-peak times in order to reduce resource and memory consumption; for example a database engine may have a lot of requests during daytime hours. So if the ETL process runs at daytime, this will cause long responses to requests, which will affect the performance of your server, so this process probably should be run late at night when the number of requests to the server is much lower.

SQL Server has a service that provides scheduling tasks; this service is named SQL Server Agent. The SQL Server Agent service can be installed with SQL Server setup media. This service should be running if we want to use scheduled jobs. SQL Server Agent Service isn't just for SSIS scheduling but is for scheduling T-SQL commands as well, for backing up, restoring, and many other things that are...

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