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Teradata Architecture for IT and Developers by Tom Coffing, John Nolan

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Chapter 4 - Teradata - The Cold Hard Facts

“Get your facts first, and then you can distort them as you please.”

- Mark Twain

All Teradata Tables are spread across All AMPs

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When data is loaded, each AMP holds a portion of the rows for every table. When queries are run, each AMP simultaneously retrieves the rows they are responsible for.

The Table Header and the Data Rows are Stored Separately

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The Table Header is created on each AMP when the table is created. The rows are stored in data blocks when the data is loaded. Both are stored separately ...

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