35. The computer-readable storage medium of claim 20 , further comprising: generating a report that includes the information that indicates a result of the comparison.
37. The computer-readable storage medium of claim 35 , wherein: the report further includes a recommendation for a database query language statement in the set of targeted database query language statements whose performance in the second database system is worse than performance in the first database system; the recommendation is to create a plan baseline for the database query language statement; the plan baseline is the execution plan for the database query language statement in the first database system; and creation of the plan baseline for the database query language statements results in the plan baseline being used in executing the database query language statement in the second database system.