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Null values can be a challenge for data warehousing, especially when using a star schema to model your data. A star schema consists of a central fact table that contains measures and keys to link ...

A value in a field or variable that indicates nothing was ever derived and stored in it. For example, in a decimal-based amount field, a null value might be all binary 0s (null characters), but ...

One of the trickier aspects of application development is dealing with null or nonexistent data. Tony Patton takes a closer look at null values in the .NET framework.