Finding Unstable Query Plans in SQL Monitor ("Bad" Parameter Sniffing)
A common but tricky issue to identify in SQL Server is when something called "parameter sniffing" goes bad. In this video, Redgate's Kendra Little shows how to identify if a query has an unstable execution plan in SQL Monitor, where to find the parameters which were "sniffed" for each query plan, and gives tips on where to start to resolve the issue.