Book Image

Teradata Cookbook

By : Abhinav Khandelwal, Viswanath Kasi, Rajsekhar Bhamidipati
Book Image

Teradata Cookbook

By: Abhinav Khandelwal, Viswanath Kasi, Rajsekhar Bhamidipati

Overview of this book

Teradata is an enterprise software company that develops and sells its eponymous relational database management system (RDBMS), which is considered to be a leading data warehousing solutions and provides data management solutions for analytics. This book will help you get all the practical information you need for the creation and implementation of your data warehousing solution using Teradata. The book begins with recipes on quickly setting up a development environment so you can work with different types of data structuring and manipulation function. You will tackle all problems related to efficient querying, stored procedure searching, and navigation techniques. Additionally, you’ll master various administrative tasks such as user and security management, workload management, high availability, performance tuning, and monitoring. This book is designed to take you through the best practices of performing the real daily tasks of a Teradata DBA, and will help you tackle any problem you might encounter in the process.
Table of Contents (19 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

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...