According to a fourth aspect there is provided a system to receive a request to search for the data. The system performs a search of a logical table based on a single criterion to identify a plurality of rows in the logical table. The system generates a first plurality of tuples based on the plurality of rows to identify a first plurality of physical tables that are mapped to the logical table, the first plurality of tuples including a first and second tuple, the first tuple identifies a first server and a first physical table that is accessed via the first server, the second tuple identifies a second server and a second physical table that is accessed via the second server. Next, the system queries at least two data sources for the data to generate results that include the data. The at least two data sources are at least partially identified by utilizing the first plurality of tuples. Finally, the system communicates the data in response to the request to search for the data.