DWHPro helps thousands of visitors every month to become experts in Teradata and data warehouse design and operations by Roland Wenzlofsky

DWHPro Apr 28, 2023

How to Improve Your Teradata Vantage Historisation Design: A Systematic Approach

Situation and Setup of a Historisation in Teradata Vantage Imagine that the time has come to improve your physical…

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DWHPro Apr 28, 2023

Teradata ALTER Table vs. INSERT INTO: Which Method is More Efficient?

Teradata ALTER Table versus INSERT INTO Altering the structure of a substantial Teradata table can consume significant…

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DWHPro Apr 28, 2023

Improving Query Performance with Teradata Statistics Extrapolation and Object Use Counts (OUC)

Teradata introduced several new features, including one that caught our attention: object use counts (OUC). This feature…

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DWHPro Apr 28, 2023

Optimizing Teradata Queries: From No Index to Hashed NUSI

The initial situation without any index In this blog, I will demonstrate how to optimize a query using Teradata’s tools.…

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DWHPro Apr 28, 2023

Understanding Teradata Hash Collisions: A Case Study and Best Practices

To comprehend the issue of Teradata hash collisions, I will briefly explain how rows are allocated. If you are…

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DWHPro Apr 28, 2023

Teradata Rollbacks: Understanding the Impact on Performance and How to Avoid Them

How to Abort the Teradata Rollback Executing a DML statement on a sizable table may trigger a prolonged ROLLBACK. In…

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DWHPro Apr 28, 2023

The Importance of Minimizing Teradata I/O: Understanding Logical vs. Physical IOs and Their Impact on Performance

Why is Teradata I/O so crucial? Minimizing Teradata I/O is a crucial aspect of performance tuning. IOs involve…

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DWHPro Apr 28, 2023

Customize Your Redshift Workload Management System for Optimal Performance

Access the Amazon Redshift Documentation here: https://aws.amazon.com/de/redshift/ Access the Amazon Redshift…

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