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Teradata Cookbook

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

Product type Paperback

Published in Feb 2018

Publisher Packt

ISBN-13 9781787280786

Length 454 pages

Edition 1st Edition

Languages

SQL

Tools

Teradata

Concepts

Database Administration

Authors (3):

Abhinav Khandelwal

Viswanath Kasi

Rajsekhar Bhamidipati

View More author details

Table of Contents (14) Chapters

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

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Resolving skew in database

A database can run out of space if it has excessive tables that are skewed. Skew in small tables is understandable and can't be controlled, whereas skew in big tables can be controlled and reduced.

DBC.TableSize: Provides space by AMP about table space usage
for each AMP.

Getting ready

We will connect to our Teradata database instance and open SLQA to generate the list of tables with their space and skew details.

How to do it...

Pick the database on which you need to analyze the skew tables.
Execute this query to get the list of tables...

You have been reading a chapter from

Teradata Cookbook

Published in: Feb 2018

Publisher: Packt

ISBN-13: 9781787280786

© 2018 Packt Publishing Limited All Rights Reserved

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Authors (3)

Kasi

Kasi

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Khandelwal

Khandelwal

Abhinav Khandelwal has 11 years of industry experience in BI, analytics, and data warehousing. He gained a BE from GIT Sitapura, Jaipur. He is pursuing his MBA at Welingkar, Mumbai and is currently based in Melbourne. He acts as a senior consultant on BI DWH projects. He has also been in the news for his award-winning projects. For more information, you can refer to his blogs called as anonymously rave and three of kind. Contact him on Twitter at @abhi_khandu.

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Bhamidipati

Bhamidipati

Rajsekhar Bhamidipati has 13 years' industry experience in Teradata and DWH and gained his BTech from BPUT Rourkela. He is working in Pune with Teradata Corp as a Senior Teradata Specialist on Teradata DWH projects. He has been associated with Teradata for more than 8 years and has successfully led multiple projects in various roles, with notable success in service delivery. He leverages Teradata and related technologies in the areas of database administration, workload, performance and cloud.

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