Michael O'Toole | Person

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Understanding the Differences Between OLTP and OLAP

In the data analytics world, OLTP systems generate source data and OLAP systems analyze it.

By Michael O'Toole

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SQL Essentials: Part 2

SQL is the analyst’s language of choice for handling structured data. Part 2 of this series introduces more advanced SQL functions.

By Michael O'Toole

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SQL Essentials: Part 1

SQL is the analyst’s language of choice for handling structured data. Here's an introduction to some basic but essential SQL functions.

By Michael O'Toole

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Guest Post: When Your DWH Is Not a DWH

Watch out for the following signs that your organization does not warehouse data correctly.

By Michael O'Toole

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Guest Post: Extract, Load and Analyze – the Agile Way

Data modeling and transformation sometimes get in the way of agility.

By Michael O'Toole

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