How to populate matlab GUI edit texts with values from MySQL database? -

i have created table 10 columns in matlab database toolbox. how retrieve values , show them in matlab gui? when use code below, undefined function 'fetch' input arguments of type 'double' error. can tell me wrong code?

f = getappdata(0,'fvalue');    %set preferences setdbprefs.  setdbprefs('datareturnformat', 'cellarray');  setdbprefs('nullstringread', 'null');      %make connection database.   conn = database('marine_invertebrates', '', '');    %read data database.  curs = fetch(conn, sprintf(['select	 description.commonname'...      ' ,	description.scientificname'...      ' ,	description.kingdom'...      ' ,	description.phylum'...      ' ,	description.subphylum'...      ' ,	description.class'...      ' ,	description.order'...      ' ,	description.family'...      ' ,	description.genus'...      ' ,	description.species'...      ' 	marine_cbir.description description.imageid = "%s"'], num2str(f)));    curs = fetch(curs);  close(curs);    %assign data output variable  results = curs.data;    commonname = set(handles.edit11,'string');   display (commonname);  scientificname = set(handles.edit1,'string');  display (scientificname);  kingdom = set(handles.edit2,'string');  display (kingdom);  phylum = set(handles.edit3,'string');   display (phylum);  subphylum = set(handles.edit4,'string');  display (subphylum);  class = set(handles.edit5,'string');  display (class);  order = set(handles.edit6,'string');  display (order);  family = set(handles.edit7,'string');  display (family );  genus = set(handles.edit8,'string');  display (genus);  species = set(handles.edit9,'string');  display (species );