SQL Error: 42001 SR185: Undefined procedure DB.DBA.gen_foaf. in WS.WS./DAV/VAD/tutorial/xml/xq_s_4/foaf.vsp:26, path => (ARRAY_OF_POINTER value, tag 193), params => (ARRAY_OF_POINTER value, tag 193), lines => (ARRAY_OF_POINTER value, tag 193), <Top Level>, :0 => (ARRAY_OF_POINTER value, tag 193), :1 => (ARRAY_OF_POINTER value, tag 193), :2 => (ARRAY_OF_POINTER value, tag 193)