Methods, systems, and computer program products modify a table definition of a database table within a database application. The depth of cut scale includes a shelf associated with and pivotable with the pivoting assembly. A mobile wireless communications device, employing a plurality of dipole antennas associated with different direction polarizations, e. The product information management unit compares the product information and the discount event information with previously stored information, sends changed product information and changed discount event information, acquired based on a result of the comparison, to a lighting control scheduler, and receives a corresponding reception Ack message. The resistor is coupled between the negative power line and an input terminal of the triggering unit.