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

Insufficient memory to parse this request


One of the most important utilities in the Teradata regime is dbscontrol. Failure 3710 occurs when there is insufficient memory to parse this request, during the optimizer phase.

This happens when the query you are executing crosses the max parser memory size limit defined in dbscontrol. Current values for MaxParseTreeSegs stored in dbccontrol record fields do not allocate enough parser memory to process the request. In this recipe, we will use the dbscontrol parameter to display and change the MaxParseTreeSegs database parameters.

Changing their values without consulting Teradata engineers is not recommended. Each database is designed with these unique values based on the configuration and software version, so, take precautions when you change these values.

Some of the parameters, when changed, require a system restart, but MaxParseTreeSegs does not.

Getting ready

You need to connect to the Teradata Database console. As we will be performing the change...