One of the trickiest aspects of relational database management can be dealing with missing information. The standard method of representing missing information is to set the “value” to null. A null ...

Null alleles have posed recurring challenges for population genetics following the introduction and application of each new method of molecular assay (including serological typing, protein ...

Understand the effects of NULLs on inner and outer JOINs Your email has been sent SQL Server developers must understand two things: the difference between inner and outer JOINs and the effect of NULLs ...

It's time to meet the Guideline Support Library, a small helper library that provides some missing functionality. I'll show you how to ensure a pointer is never null, which will make your applications ...

This article is also available as a PDF download. Where errors are concerned, null values are an equal-opportunity menace. If an unhandled null value doesn’t generate a runtime error, it’ll show up in ...

Neural circuits must perform computations and then selectively output the results to other circuits. Yet synapses do not change radically at millisecond timescales. A key question then is: how is ...