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SQL Server 2017 Integration Services Cookbook

You're reading from   SQL Server 2017 Integration Services Cookbook Powerful ETL techniques to load and transform data from almost any source

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Product type Paperback
Published in Jun 2017
Publisher Packt
ISBN-13 9781786461827
Length 558 pages
Edition 1st Edition
Languages
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Authors (6):
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Matija Lah Matija Lah
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Matija Lah
Christo Olivier Christo Olivier
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Christo Olivier
Christian Cote Christian Cote
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Christian Cote
Dejan Sarka Dejan Sarka
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Dejan Sarka
David Peter Hansen David Peter Hansen
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David Peter Hansen
Samuel Lester Samuel Lester
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Samuel Lester
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Toc

Table of Contents (12) Chapters Close

Preface 1. SSIS Setup FREE CHAPTER 2. What Is New in SSIS 2016 3. Key Components of a Modern ETL Solution 4. Data Warehouse Loading Techniques 5. Dealing with Data Quality 6. SSIS Performance and Scalability 7. Unleash the Power of SSIS Script Task and Component 8. SSIS and Advanced Analytics 9. On-Premises and Azure Big Data Integration 10. Extending SSIS Custom Tasks and Transformations 11. Scale Out with SSIS 2017

Using the master package concept


By using the master package concept, it is possible to parallelize the execution of multiple child packages as determined in the control flow of the master package. Typically, this approach is used to parallelize packages that use separate data sources and data destinations (for instance, processing separate dimension tables in data warehousing scenarios), or to parallelize packages with CPU-intensive operations to run concurrently with packages with I/O-intensive operations.

In the control flow, you use precedence constraints and containers to determine which operations can be performed in parallel, and which of them must be performed in sequence. Through the MaxConcurrentExecutables package property, you can determine the maximum number of tasks to be performed simultaneously.

For instance, in data warehousing scenarios, fact tables are processed after the associated dimension tables have been processed successfully. Prior to fact processing, most dimension...

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