15. The apparatus of claim 9 , wherein the query request comprises a storage acquisition condition and a result filtering condition based at least in part on the one or more business elements.
15. The apparatus of claim 9 , wherein the query request comprises a storage acquisition condition and a result filtering condition based at least in part on the one or more business elements. 16. The apparatus of claim 15 , wherein the conversion unit is further configured to convert the query request by using the storage acquisition condition as a query condition, and wherein the apparatus further comprises a screening unit stored in the memory and executable by the one or more processors to screen an access result acquired from each database based at least in part on the result filtering condition.