A method and system for retrieving data from devices in a way that seeks to preserve privacy and ensure the integrity of the retrieved data is provided. The system includes a plurality of data centers and a plurality of instances of a multi-tenant database system core. The second connection is configured to couple a second pin of the first chip to a second pin of the second chip to return the signal as a returned signal to the first chip. In the database display step, a database that is stored in the memory and includes plurality of records is displayed. The corresponding detent extension is thus guided in a detent element parallel to a tabletop axis of the corresponding tabletop element. In one arrangement, an angle between the third side and the fourth side is not greater than 70\xb0.