Air quality data powers a wide range of recurring, real-world decisions — from a parent checking whether it's safe for their child to play outside, to a public health official deciding whether to ...

Exclusive: Guardian investigation finds data from flagship medical research leaked dozens of times Confidential health data has been exposed online on dozens of occasions, a Guardian investigation can ...

How to: Connect Using Windows Authentication Describes how to establish a connection by using Windows Authentication. How to: Connect Using SQL Server Authentication Describes how to establish a ...