for( int i = 0; i < field_value_list.size(); i++ )
{
Field_value fv = (Field_value)field_value_list.get(i);
if( settings.length() > 0 ) settings += ", ";
settings += q + fv.field_name + q + "=" + fv.sql_value();
}
return conn.normalizeStatement("UPDATE " + table_name + " SET " + settings + " WHERE " + where);