1. A method for detecting workload changes processed by a database management system, the method comprising: monitoring, by one or more computer processors, a plurality of workloads processed by the database management system in a first monitoring interval and a second monitoring interval; detecting, by one or more computer processors, a change in a type of workload for the first and second monitoring interval; and responsive to detecting the change in the type of workload for the first and second monitoring interval, identifying, by one or more computer processors, the type of workload in the second monitoring interval based, at least in part, on one or more time invariant metrics.