18. The computer readable medium of claim 16 , wherein performing the automated execution process further comprises: in response to notifying the requesting entity, receiving a modified predefined condition from the requesting entity; resuming the iterative execution of the query against one or more samples of the database; determining whether the query result obtained for each subsequent iterative execution of the query satisfies the modified condition; and if the modified condition is not satisfied, performing the predefined action.
19. The computer readable medium of claim 18 , wherein performing the automated execution process further comprises: determining whether all previous query results obtained for the iterative executions performed prior to receiving the modified condition satisfy the modified condition; and if the modified condition is not satisfied by one or more of the previous query results, performing the predefined action.