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Technical Article

Strategies for Testing Data Warehouse Applications

This article presents a strategy for testing ETL applications that perform data movement and populate data warehouses. It is useful information for the testing community as well as designers and managers charged with planning a data warehousing implementation.

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2007-09-21

2,460 reads

Technical Article

Handling NULL values in SQL Server 2005

In the simplest terms, a NULL value represents an unknown value. It's unknown in the sense that the value is: missing from the system, may not be applicable in the current situation, or might be added later. NULL values are different than any other value and are sometimes hard to compare and handle.

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2007-09-20

3,550 reads

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Question of the Day

Negative and Positive Numbers

If I want to know whether a number of negative, positive, or zero, what is the easiest way to get this in T-SQL?

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