The other day, my colleague and a good friend called me and told that her SQL Server gone nuts. One of developers launched a query and it run for ages, once she executed the same query it returned results in a few seconds. So how something like this can...

Introduction While working on a customer request, I faced the question what is the SQLIO? how to operate it and how to analyze its outputs? The customer has read about the tool and was also able to run it but wanted more information on how to do...