1. A computer-implemented method comprising: selecting, from a workload set, a set of targeted database query language statements for performance analysis; wherein the workload set comprises database query language statements and performance data for the database query language statements; executing, on a first database system, the set of targeted query language statements; wherein executing the set of targeted database query language statements on the first database system comprises gathering a first set of performance data about the execution of the targeted database query language statements on the first database system; executing, on a second database system, the set of targeted query language statements; wherein executing the set of targeted database query language statements on the second database system comprises gathering a second set of performance data about the execution of the targeted database query language statements on the second database system; comparing the first set of performance data with the second set of performance data; storing, in a computer-readable medium, information that indicates a result of the comparison.