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Teradata Cookbook

You're reading from   Teradata Cookbook Over 85 recipes to implement efficient data warehousing solutions

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Product type Paperback
Published in Feb 2018
Publisher Packt
ISBN-13 9781787280786
Length 454 pages
Edition 1st Edition
Languages
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Authors (3):
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Abhinav Khandelwal Abhinav Khandelwal
Author Profile Icon Abhinav Khandelwal
Abhinav Khandelwal
Viswanath Kasi Viswanath Kasi
Author Profile Icon Viswanath Kasi
Viswanath Kasi
Rajsekhar Bhamidipati Rajsekhar Bhamidipati
Author Profile Icon Rajsekhar Bhamidipati
Rajsekhar Bhamidipati
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Toc

Table of Contents (14) Chapters Close

Preface 1. Installation 2. SQLs FREE CHAPTER 3. Advanced SQL with Backup and Restore 4. All about Indexes 5. Mixing Strategies – Joining of Tables 6. Building Loading Utility – Replication and Loading 7. Monitoring the better way 8. Collect Statistics the Better Way 9. Application and OPS DBA Insight 10. DBA Insight 11. Performance Tuning 12. Troubleshooting 13. Other Books You May Enjoy

Defining workloads based on application


With millions of queries coming in and out of Teradata Database, it becomes important to manage them better. Low-performance queries need to be demoted or aborted, and critical jobs should be completed as soon as possible.

Your windows also have a workload and process that you can control and give priority to. Kill an application that may have hung your Windows machine. It looks like something like the following image:

To cater for the need to prioritize the request and to make the system stable, use Teradata Active System Management (TASM). The user or batch queries are categorized in the workload. These workloads are then categorized based on their priority. And to further regulate queries in this workload, TASM has filter and throttle created in it.

The following diagram can be used to explain this in a better way:

TASM enables admins to set SLGs based on the application, to monitor adherence to them, and to take any necessary steps to reallocate resources...

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