In this SQL Server tip, Arthur Fuller explains the effects of NULLs, and the different results obtained by inner and outer JOINs. SQL Server developers must understand two things: the difference ...

From plotting routes to revealing traffic light locations, these free navigation services continue to evolve with new features. But which is tops? I tested both map apps and found a clear winner. My ...

Robert Kelly is managing director of XTS Energy LLC, and has more than three decades of experience as a business executive. He is a professor of economics and has raised more than $4.5 billion in ...

The Genographic Project began in 2005 and is a research project carried out by the National Geographic Society’s scientific team to reveal patterns of human migration. The project is carried out in ...

The Current Radar map shows areas of current precipitation (rain, mixed, or snow). The map can be animated to show the previous one hour of radar.